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zoom (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
z-index
z-indexThe z-index CSS property sets the z-order of a positioned element and its descendants or flex items. Overlapping elements with a larger z-index cover those with a smaller one. For a positioned ..
resolution#x
<resolution>The <resolution> CSS data type, used for describing resolutions in media queries, denotes the pixel density of an output device, i.e., its resolution. On screens, the units are..
writing-mode
writing-modeThe writing-mode CSS property sets whether lines of text are laid out horizontally or vertically, as well as the direction in which blocks progress. When set for an entire document, it sho..
word-wrap
overflow-wrapThe overflow-wrap CSS property applies to inline elements, setting whether the browser should insert line breaks within an otherwise unbreakable string to prevent text from overflowing it..
word-spacing
word-spacingThe word-spacing CSS property sets the length of space between words and between tags.Syntax/* Keyword value */ word-spacing: normal; /* <length> values */ word-spacing: 3px; word-s..
word-break
word-breakThe word-break CSS property sets whether line breaks appear wherever the text would otherwise overflow its content box.Syntax/* Keyword values */ word-break: normal; word-break: break-all; w..
will-change
will-changeThe will-change CSS property hints to browsers how an element is expected to change. Browsers may set up optimizations before an element is actually changed. These kinds of optimizations ca..
width (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
width
widthThe width CSS property sets an element's width. By default, it sets the width of the content area, but if box-sizing is set to border-box, it sets the width of the border area. The min-width and ..
widows
widowsThe widows CSS property sets the minimum number of lines in a block container that must be shown at the top of a page, region, or column. /* <integer> values */ widows: 2; widows: 3; /* G..
white-space
white-spaceThe white-space CSS property sets how white space inside an element is handled. The property specifies two things: Whether and how white space is collapsed. Whether lines may wrap at s..
:where
:where()The :where() CSS pseudo-class function takes a selector list as its argument, and selects any element that can be selected by one of the selectors in that list. /* Selects any paragraph inside..
:visited
:visitedThe :visited CSS pseudo-class represents links that the user has already visited. For privacy reasons, the styles that can be modified using this selector are very limited. /* Selects any <..
visibility
visibilityThe visibility CSS property shows or hides an element without changing the layout of a document. The property can also hide rows or columns in a <table>. To both hide an element and re..
viewport-fit (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
@viewport
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
vertical-align
vertical-alignThe vertical-align CSS property sets vertical alignment of an inline, inline-block or table-cell box. The vertical-align property can be used in two contexts: To vertically align an i..
var()
var()The var() CSS function can be used to insert the value of a custom property (sometimes called a "CSS variable") instead of any part of a value of another property. The var() function cannot be us..
:valid
:validThe :valid CSS pseudo-class represents any <input> or other <form> element whose contents validate successfully. This allows to easily make valid fields adopt an appearance that help..
length#vw
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
length#vmin
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
length#vmax
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
length#vh
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
user-zoom (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
:user-valid
:user-valid (:-moz-ui-valid)The :user-valid CSS pseudo-class represents any validated form element whose value validates correctly based on its validation constraints. However, unlike :valid it only m..
user-select
user-selectThe user-select CSS property controls whether the user can select text. This doesn't have any effect on content loaded as part of a browser's user interface (its chrome), except in textboxe..
:user-invalid
:user-invalid (:-moz-ui-invalid)The :user-invalid CSS pseudo-class represents any validated form element whose value isn't valid based on their validation constraints, after the user has interacted wi..
url()
url()The url() CSS function is used to include a file. The parameter is an absolute URL, a relative URL, a blob URL, or a data URL. The url() function can be passed as a parameter of another CSS funct..
<url>
url()The url() CSS function is used to include a file. The parameter is an absolute URL, a relative URL, a blob URL, or a data URL. The url() function can be passed as a parameter of another CSS funct..
unset
unsetThe unset CSS keyword resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not. In other words, it behaves like the inherit key..
unicode-range (@font-face)
unicode-rangeThe unicode-range CSS descriptor sets the specific range of characters to be used from a font defined by @font-face and made available for use on the current page. If the page doesn't use..
unicode-bidi
unicode-bidiThe unicode-bidi CSS property, together with the direction property, determines how bidirectional text in a document is handled. For example, if a block of content contains both left-to-ri..
translateZ()
translateZ() The translateZ() CSS function repositions an element along the z-axis in 3D space, i.e., closer to or farther away from the viewer. Its result is a <transform-function> data typ..
translateY()
translateY() The translateY() CSS function repositions an element vertically on the 2D plane. Its result is a <transform-function> data type. Note: translateY(ty) is equivalent..
translateX()
translateX() The translateX() CSS function repositions an element horizontally on the 2D plane. Its result is a <transform-function> data type. Note: translateX(tx) is equivale..
translate3d()
translate3d() The translate3d() CSS function repositions an element in 3D space. Its result is a <transform-function> data type. This transformation is characterized by a three-dimension..
translate()
translate() The translate() CSS function repositions an element in the horizontal and/or vertical directions. Its result is a <transform-function> data type. This transformation is ..
translate
translateThe translate CSS property allows you to specify translation transforms individually and independently of the transform property. This maps better to typical user interface usage, and saves h..
transition-timing-function
transition-timing-functionThe transition-timing-function CSS property sets how intermediate values are calculated for CSS properties being affected by a transition effect. This, in essence, lets you e..
transition-property
transition-propertyThe transition-property CSS property sets the CSS properties to which a transition effect should be applied. Note: The set of properties that can be animated is subject to change..
transition-duration
transition-durationThe transition-duration CSS property sets the length of time a transition animation should take to complete. By default, the value is 0s, meaning that no animation will occur. You m..
transition-delay
transition-delayThe transition-delay CSS property specifies the duration to wait before starting a property's transition effect when its value changes. The delay may be zero, positive, or negative: ..
transition
transitionThe transition CSS property is a shorthand property for transition-property, transition-duration, transition-timing-function, and transition-delay. Transitions enable you to define the trans..
transform-style
transform-styleThe transform-style CSS property sets whether children of an element are positioned in the 3D space or are flattened in the plane of the element. If flattened, the element's children wi..
transform-origin
transform-originThe transform-origin CSS property sets the origin for an element's transformations. The transform origin is the point around which a transformation is applied. For example, the transfo..
<transform-function>
<transform-function>The <transform-function> CSS data type represents a transformation that affects an element's appearance. Transformation functions can rotate, resize, distort, or move a..
transform-box
transform-boxThe transform-box CSS property defines the layout box to which the transform and transform-origin properties relate. /* Keyword values */ transform-box: content-box; transform-box: border..
transform
transform The transform CSS property lets you rotate, scale, skew, or translate an element. It modifies the coordinate space of the CSS visual formatting model. If the property has a value dif..
touch-action
touch-actionThe touch-action CSS property sets how an element's region can be manipulated by a touchscreen user (for example, by zooming features built into the browser). /* Keyword values */ touch-ac..
@top-center
@pageThe @page CSS at-rule is used to modify some CSS properties when printing a document.Syntax@page { margin: 1cm; } @page :first { margin: 2cm; } Descriptors size Specifies the target..
top
topThe top CSS property participates in specifying the vertical position of a positioned element. It has no effect on non-positioned elements. The effect of top depends on how the element is positione..
<timing-function>
<easing-function>The <easing-function> CSS data type denotes a mathematical function that describes the rate at which a numerical value changes. This transition between two values may be a..
<time-percentage>
<time-percentage>The <time-percentage> CSS data type represents a value that can be either a <time> or a <percentage>.SyntaxRefer to the documentation for <time> and <..
<time>
<time>The <time> CSS data type represents a time value expressed in seconds or milliseconds. It is used in animation, transition, and related properties.SyntaxThe <time> data type co..
text-underline-position
text-underline-positionThe text-underline-position CSS property specifies the position of the underline which is set using the text-decoration property's underline value.Syntax/* Single keyword */ tex..
text-underline-offset
text-underline-offsetThe text-underline-offset CSS property sets the offset distance of an underline text decoration line (applied using text-decoration) from its original position. text-underline-off..
text-transform
text-transformThe text-transform CSS property specifies how to capitalize an element's text. It can be used to make text appear in all-uppercase or all-lowercase, or with each word capitalized. It als..
text-size-adjust
text-size-adjustExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The text-size-adjust CSS property controls the text inf..
text-shadow
text-shadowThe text-shadow CSS property adds shadows to text. It accepts a comma-separated list of shadows to be applied to the text and any of its decorations. Each shadow is described by some combin..
text-rendering
text-renderingThe text-rendering CSS property provides information to the rendering engine about what to optimize for when rendering text. The browser makes trade-offs among speed, legibility, and geo..
text-overflow
text-overflowThe text-overflow CSS property sets how hidden overflow content is signaled to users. It can be clipped, display an ellipsis ('…'), or display a custom string. The text-overflow propert..
text-orientation
text-orientationThe text-orientation CSS property sets the orientation of the text characters in a line. It only affects text in vertical mode (when writing-mode is not horizontal-tb). It is useful fo..
text-justify
text-justifyThe text-justify CSS property sets what type of justification should be applied to text when text-align: justify; is set on an element.Syntaxtext-justify: none; text-justify: auto; text-ju..
text-indent
text-indentThe text-indent CSS property sets the length of empty space (indentation) that is put before lines of text in a block. Horizontal spacing is with respect to the left (or right, for right-to..
text-emphasis-style
text-emphasis-styleThe text-emphasis-style CSS property sets the appearance of emphasis marks. It can also be set, and reset, using the text-emphasis shorthand. /* Initial value */ text-emphasis-style..
text-emphasis-position
text-emphasis-positionThe text-emphasis-position CSS property sets where emphasis marks are drawn. Like ruby text, if there isn't enough room for emphasis marks, the line height is increased. /* Initi..
text-emphasis-color
text-emphasis-colorThe text-emphasis-color CSS property sets the color of emphasis marks. This value can also be set using the text-emphasis shorthand. /* Initial value */ text-emphasis-color: current..
text-emphasis
text-emphasisThe text-emphasis CSS property applies emphasis marks to text (except spaces and control characters). It is a shorthand for text-emphasis-style and text-emphasis-color. The text-emphasis ..
text-decoration-thickness
text-decoration-thicknessThe text-decoration-thickness CSS property sets the stroke thickness of the decoration line that is used on text in an element, such as a line-through, underline, or overline...
text-decoration-style
text-decoration-styleThe text-decoration-style CSS property sets the style of the lines specified by text-decoration-line. The style applies to all lines that are set with text-decoration-line. If the..
text-decoration-skip-ink
text-decoration-skip-inkThe text-decoration-skip-ink CSS property specifies how overlines and underlines are drawn when they pass over glyph ascenders and descenders. text-decoration-skip-ink is not p..
text-decoration-skip
text-decoration-skipThe text-decoration-skip CSS property sets what parts of an element's content any text decoration affecting the element must skip over. It controls all text decoration lines drawn ..
text-decoration-line
text-decoration-lineThe text-decoration-line CSS property sets the kind of decoration that is used on text in an element, such as an underline or overline. When setting multiple line-decoration proper..
text-decoration-color
text-decoration-colorThe text-decoration-color CSS property sets the color of decorations added to text by text-decoration-line. The color applies to decorations, such as underlines, overlines, strike..
text-decoration
text-decorationThe text-decoration shorthand CSS property sets the appearance of decorative lines on text. It is a shorthand for text-decoration-line, text-decoration-color, text-decoration-style, and..
text-combine-upright
text-combine-uprightThe text-combine-upright CSS property sets the combination of characters into the space of a single character. If the combined text is wider than 1em, the user agent must fit the c..
text-align-last
text-align-lastThe text-align-last CSS property sets how the last line of a block or a line, right before a forced line break, is aligned.Syntax/* Keyword values */ text-align-last: auto; text-align-l..
text-align
text-alignThe text-align CSS property sets the horizontal alignment of the content inside a block element or table-cell box. This means it works like vertical-align but in the horizontal direction.Syn..
:target-within
:target-withinExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The :target-within CSS pseudo-class represents an element..
::target-text
::target-textExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The ::target-text CSS pseudo-element represents the text t..
:target
:targetThe :target CSS pseudo-class represents a unique element (the target element) with an id matching the URL's fragment. /* Selects an element with an ID matching the current URL's fragment */ :ta..
table-layout
table-layoutThe table-layout CSS property sets the algorithm used to lay out <table> cells, rows, and columns.Syntax/* Keyword values */ table-layout: auto; table-layout: fixed; /* Global value..
tab-size
tab-sizeThe tab-size CSS property is used to customize the width of tab characters (U+0009).Syntax/* <integer> values */ tab-size: 4; tab-size: 0; /* <length> values */ tab-size: 10px; ta..
angle#turn
<angle>The <angle> CSS data type represents an angle value expressed in degrees, gradians, radians, or turns. It is used, for example, in <gradient>s and in some transform functions...
time#s
<time>The <time> CSS data type represents a time value expressed in seconds or milliseconds. It is used in animation, transition, and related properties.SyntaxThe <time> data type co..
system (@counter-style)
systemThe system descriptor specifies the algorithm to be used for converting the integer value of a counter to a string representation. It is used in a @counter-style to define the behavior of the de..
syntax (@property)
syntaxExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The syntax CSS descriptor is required when using the @property at..
symbols()
symbols()The symbols() CSS function lets you define counter styles inline, directly as the value of a property such as list-style. Unlike @counter-style, symbols() is anonymous (i.e., it can only be u..
symbols (@counter-style)
symbolsThe symbols CSS descriptor is used to specify the symbols that the specified counter system will use to construct counter representations.SyntaxThe symbols descriptor is specified as one or mor..
swash()
font-variant-alternatesThe font-variant-alternates CSS property controls the usage of alternate glyphs. These alternate glyphs may be referenced by alternative names defined in @font-feature-values. /..
@swash
@font-feature-valuesThe @font-feature-values CSS at-rule lets you use a common name in the font-variant-alternates property for features activated differently in OpenType. This can help simplify your ..
@supports
@supportsThe @supports CSS at-rule lets you specify declarations that depend on a browser's support for one or more specific CSS features. This is called a feature query. The rule may be placed at the..
suffix (@counter-style)
suffixThe suffix descriptor of the@counter-style rule specifies content that will be appended to the marker representation.Syntax/* <symbol> values */ suffix: ""; suffix: ") "; suffix: url(bulle..
stylistic()
font-variant-alternatesThe font-variant-alternates CSS property controls the usage of alternate glyphs. These alternate glyphs may be referenced by alternative names defined in @font-feature-values. /..
@stylistic
@font-feature-valuesThe @font-feature-values CSS at-rule lets you use a common name in the font-variant-alternates property for features activated differently in OpenType. This can help simplify your ..
styleset()
font-variant-alternatesThe font-variant-alternates CSS property controls the usage of alternate glyphs. These alternate glyphs may be referenced by alternative names defined in @font-feature-values. /..
@styleset
@font-feature-valuesThe @font-feature-values CSS at-rule lets you use a common name in the font-variant-alternates property for features activated differently in OpenType. This can help simplify your ..
<string>
<string>The <string> CSS data type represents a sequence of characters. Strings are used in numerous CSS properties, such as content, font-family, and quotes.SyntaxThe <string> data ..
steps()
<easing-function>The <easing-function> CSS data type denotes a mathematical function that describes the rate at which a numerical value changes. This transition between two values may be a..
src (@font-face)
srcThe src CSS descriptor of the @font-face rule specifies the resource containing font data. It is required for the @font-face rule to be valid.Syntax/* <url> values */ src: url(https://someweb..
::spelling-error
::spelling-errorExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The ::spelling-error CSS pseudo-element represents a te..
speak-as (@counter-style)
speak-asThe speak-as descriptor specifies how a counter symbol constructed with a given @counter-style will be represented in the spoken form. For example, an author can specify a counter symbol to be..
::slotted
::slotted()The ::slotted() CSS pseudo-element represents any element that has been placed into a slot inside an HTML template (see Using templates and slots for more information). This only works when..
skewY()
skewY() The skewY() CSS function defines a transformation that skews an element in the vertical direction on the 2D plane. Its result is a <transform-function> data type. This transforma..
skewX()
skewX() The skewX() CSS function defines a transformation that skews an element in the horizontal direction on the 2D plane. Its result is a <transform-function> data type. This transfor..
skew()
skew() The skew() CSS function defines a transformation that skews an element on the 2D plane. Its result is a <transform-function> data type. This transformation is a shear mapping (tra..
size-adjust (@font-face)
size-adjustThe size-adjust CSS descriptor defines a multiplier for glyph outlines and metrics associated with this font. This makes it easier to harmonize the designs of various fonts when rendered at..
size (@page)
sizeExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The size CSS at-rule descriptor, used with the @page at-rule, defin..
shape-outside
shape-outsideThe shape-outside CSS property defines a shape—which may be non-rectangular—around which adjacent inline content should wrap. By default, inline content wraps around its margin box; s..
shape-margin
shape-marginThe shape-margin CSS property sets a margin for a CSS shape created using shape-outside. The margin lets you adjust the distance between the edges of the shape (the float element) and the ..
shape-image-threshold
shape-image-thresholdThe shape-image-threshold CSS property sets the alpha channel threshold used to extract the shape using an image as the value for shape-outside. Any pixels whose alpha component's..
<shape>
<shape>Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of ..
sepia()
sepia()The sepia() CSS function converts the input image to sepia, giving it a warmer, more yellow/brown appearance. Its result is a <filter-function>.Syntaxsepia(amount) Parameters amount ..
::selection
::selectionThe ::selection CSS pseudo-element applies styles to the part of a document that has been highlighted by the user (such as clicking and dragging the mouse across text). ::selection { back..
scrollbar-width
scrollbar-widthThe scrollbar-width property allows the author to set the maximum thickness of an element's scrollbars when they are shown.Syntax/* Keyword values */ scrollbar-width: auto; scrollbar-wi..
scrollbar-gutter
scrollbar-gutterThe scrollbar-gutter CSS property allows authors to reserve space for the scrollbar, preventing unwanted layout changes as the content grows while also avoiding unnecessary visuals whe..
scrollbar-color
scrollbar-colorThe scrollbar-color CSS property sets the color of the scrollbar track and thumb. The track refers to the background of the scrollbar, which is generally fixed regardless of the scrolli..
@scroll-timeline
@scroll-timelineThe @scroll-timeline CSS at-rule defines an AnimationTimeline whose time values are determined by scrolling progress within a scroll container and not by minutes or seconds. Once speci..
scroll-snap-type
scroll-snap-typeThe scroll-snap-type CSS property sets how strictly snap points are enforced on the scroll container in case there is one. Specifying any precise animations or physics used to enforce ..
scroll-snap-stop
scroll-snap-stopThe scroll-snap-stop CSS property defines whether the scroll container is allowed to "pass over" possible snap positions. /* Keyword values */ scroll-snap-stop: normal; scroll-snap-sto..
scroll-snap-align
scroll-snap-alignThe scroll-snap-align property specifies the box's snap position as an alignment of its snap area (as the alignment subject) within its snap container's snapport (as the alignment con..
scroll-padding-top
scroll-padding-topThe scroll-padding-top property defines offsets for the top of the optimal viewing region of the scrollport: the region used as the target region for placing things in view of the us..
scroll-padding-right
scroll-padding-rightThe scroll-padding-right property defines offsets for the right of the optimal viewing region of the scrollport: the region used as the target region for placing things in view of ..
scroll-padding-left
scroll-padding-leftThe scroll-padding-left property defines offsets for the left of the optimal viewing region of the scrollport: the region used as the target region for placing things in view of the..
scroll-padding-inline-start
scroll-padding-inline-startThe scroll-padding-inline-start property defines offsets for the start edge in the inline dimension of the optimal viewing region of the scrollport: the region used as the t..
scroll-padding-inline-end
scroll-padding-inline-endThe scroll-padding-inline-end property defines offsets for the end edge in the inline dimension of the optimal viewing region of the scrollport: the region used as the target ..
scroll-padding-inline
scroll-padding-inlineThe scroll-padding-inline shorthand property sets the scroll padding of an element in the inline dimension. The scroll-padding properties define offsets for the optimal viewing re..
scroll-padding-bottom
scroll-padding-bottomThe scroll-padding-bottom property defines offsets for the bottom of the optimal viewing region of the scrollport: the region used as the target region for placing things in view ..
scroll-padding-block-start
scroll-padding-block-startThe scroll-padding-block-start property defines offsets for the start edge in the block dimension of the optimal viewing region of the scrollport: the region used as the targ..
scroll-padding-block-end
scroll-padding-block-endThe scroll-padding-block-end property defines offsets for the end edge in the block dimension of the optimal viewing region of the scrollport: the region used as the target reg..
scroll-padding-block
scroll-padding-blockThe scroll-padding-block shorthand property sets the scroll padding of an element in the block dimension. The scroll-padding properties define offsets for the optimal viewing regio..
scroll-padding
scroll-paddingThe scroll-padding shorthand property sets scroll padding on all sides of an element at once, much like the padding property does for padding on an element. The scroll-padding-* properti..
scroll-margin-top
scroll-margin-topThe scroll-margin-top property defines the top margin of the scroll snap area that is used for snapping this box to the snapport. The scroll snap area is determined by taking the tran..
scroll-margin-right
scroll-margin-rightThe scroll-margin-right property defines the right margin of the scroll snap area that is used for snapping this box to the snapport. The scroll snap area is determined by taking th..
scroll-margin-left
scroll-margin-leftThe scroll-margin-left property defines the left margin of the scroll snap area that is used for snapping this box to the snapport. The scroll snap area is determined by taking the t..
scroll-margin-inline-start
scroll-margin-inline-startThe scroll-margin-inline-start property defines the margin of the scroll snap area at the start of the inline dimension that is used for snapping this box to the snapport. Th..
scroll-margin-inline-end
scroll-margin-inline-endThe scroll-margin-inline-end property defines the margin of the scroll snap area at the end of the inline dimension that is used for snapping this box to the snapport. The scro..
scroll-margin-inline
scroll-margin-inlineThe scroll-margin-inline shorthand property sets the scroll margins of an element in the inline dimension.Constituent propertiesThis property is a shorthand for the following CSS p..
scroll-margin-bottom
scroll-margin-bottomThe scroll-margin-bottom property defines the bottom margin of the scroll snap area that is used for snapping this box to the snapport. The scroll snap area is determined by taking..
scroll-margin-block-start
scroll-margin-block-startThe scroll-margin-block-start property defines the margin of the scroll snap area at the start of the block dimension that is used for snapping this box to the snapport. The s..
scroll-margin-block-end
scroll-margin-block-endThe scroll-margin-block-end property defines the margin of the scroll snap area at the end of the block dimension that is used for snapping this box to the snapport. The scroll ..
scroll-margin-block
scroll-margin-blockThe scroll-margin-block shorthand property sets the scroll margins of an element in the block dimension.Constituent propertiesThis property is a shorthand for the following CSS prop..
scroll-margin
scroll-marginThe scroll-margin shorthand property sets all of the scroll margins of an element at once, assigning values much like the margin property does for margins of an element.Constituent proper..
scroll-behavior
scroll-behaviorThe scroll-behavior CSS property sets the behavior for a scrolling box when scrolling is triggered by the navigation or CSSOM scrolling APIs. Note that any other scrolls, such as those ..
:scope
:scopeThe :scope CSS pseudo-class represents elements that are a reference point for selectors to match against. /* Selects a scoped element */ :scope { background-color: lime; } Currently, when us..
scaleZ()
scaleZ() The scaleZ() CSS function defines a transformation that resizes an element along the z-axis. Its result is a <transform-function> data type. This scaling transformation modifies..
scaleY()
scaleY() The scaleY() CSS function defines a transformation that resizes an element along the y-axis (vertically). Its result is a <transform-function> data type. It modifies the or..
scaleX()
scaleX() The scaleX() CSS function defines a transformation that resizes an element along the x-axis (horizontally). Its result is a <transform-function> data type. It modifies the ..
scale3d()
scale3d() The scale3d() CSS function defines a transformation that resizes an element in 3D space. Because the amount of scaling is defined by a vector, it can resize different dimensions at diffe..
scale()
scale() The scale() CSS function defines a transformation that resizes an element on the 2D plane. Because the amount of scaling is defined by a vector, it can resize the horizontal and vertical d..
scale
scaleThe scale CSS property allows you to specify scale transforms individually and independently of the transform property. This maps better to typical user interface usage, and saves having to remem..
saturate()
saturate()The saturate() CSS function super-saturates or desaturates the input image. Its result is a <filter-function>.Syntaxsaturate(amount) Parameters amount The amount of the conver..
ruby-position
ruby-positionThe ruby-position CSS property defines the position of a ruby element relatives to its base element. It can be positioned over the element (over), under it (under), or between the charact..
ruby-align
ruby-alignThe ruby-align CSS property defines the distribution of the different ruby elements over the base. /* Keyword values */ ruby-align: start; ruby-align: center; ruby-align: space-between; ruby..
row-gap
row-gap (grid-row-gap)The row-gap CSS property sets the size of the gap (gutter) between an element's grid rows.Syntax/* <length> values */ row-gap: 20px; row-gap: 1em; row-gap: 3vmin; row-gap: ..
rotateZ()
rotateZ() The rotateZ() CSS function defines a transformation that rotates an element around the z-axis without deforming it. Its result is a <transform-function> data type. The axis of rot..
rotateY()
rotateY() The rotateY() CSS function defines a transformation that rotates an element around the ordinate (vertical axis) without deforming it. Its result is a <transform-function> data type..
rotateX()
rotateX() The rotateX() CSS function defines a transformation that rotates an element around the abscissa (horizontal axis) without deforming it. Its result is a <transform-function> data ty..
rotate3d()
rotate3d() The rotate3d() CSS function defines a transformation that rotates an element around a fixed axis in 3D space, without deforming it. Its result is a <transform-function> data type...
rotate()
rotate() The rotate() CSS function defines a transformation that rotates an element around a fixed point on the 2D plane, without deforming it. Its result is a <transform-function> data ty..
rotate
rotateThe rotate CSS property allows you to specify rotation transforms individually and independently of the transform property. This maps better to typical user interface usage, and saves having to ..
:root
:rootThe :root CSS pseudo-class matches the root element of a tree representing the document. In HTML, :root represents the <html> element and is identical to the selector html, except that its ..
@right-bottom
@pageThe @page CSS at-rule is used to modify some CSS properties when printing a document.Syntax@page { margin: 1cm; } @page :first { margin: 2cm; } Descriptors size Specifies the target..
right
rightThe right CSS property participates in specifying the horizontal position of a positioned element. It has no effect on non-positioned elements.Syntax/* <length> values */ right: 3px; right:..
:right
:rightThe :right CSS pseudo-class, used with the @page at-rule, represents all right-hand pages of a printed document. /* Selects any right-hand pages when printing */ @page :right { margin: 2in 3in..
rgba()
<color> The <color> CSS data type represents a color. A <color> may also include an alpha-channel transparency value, indicating how the color should composite with its backgroun..
rgb()
<color> The <color> CSS data type represents a color. A <color> may also include an alpha-channel transparency value, indicating how the color should composite with its backgroun..
revert
revertThe revert CSS keyword reverts the cascaded value of the property from its current value to the value the property would have had if no changes had been made by the current style origin to the c..
<resolution>
<resolution>The <resolution> CSS data type, used for describing resolutions in media queries, denotes the pixel density of an output device, i.e., its resolution. On screens, the units are..
resize
resizeThe resize CSS property sets whether an element is resizable, and if so, in which directions. resize does not apply to the following: Inline elements Block elements for which the overflow p..
:required
:requiredThe :required CSS pseudo-class represents any <input>, <select>, or <textarea> element that has the required attribute set on it. /* Selects any required <input> */ in..
repeating-radial-gradient()
repeating-radial-gradient()The repeating-radial-gradient() CSS function creates an image consisting of repeating gradients that radiate from an origin. It is similar to radial-gradient() and takes the..
repeating-linear-gradient()
repeating-linear-gradient()The repeating-linear-gradient() CSS function creates an image consisting of repeating linear gradients. It is similar to linear-gradient() and takes the same arguments, but ..
repeat()
repeat()The repeat() CSS function represents a repeated fragment of the track list, allowing a large number of columns or rows that exhibit a recurring pattern to be written in a more compact form. Th..
rect()
<shape>Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of ..
:read-write
:read-writeThe :read-write CSS pseudo-class represents an element (such as input or textarea) that is editable by the user. input:read-write, textarea:read-write { background-color: #bbf; } p:read-..
:read-only
:read-onlyThe :read-only CSS pseudo-class represents an element (such as input or textarea) that is not editable by the user. input:read-only, textarea:read-only { background-color: #ccc; } p:read-..
<ratio>
<ratio>The <ratio> CSS data type, used for describing aspect ratios in media queries, denotes the proportion between two unitless values.SyntaxIn Media Queries Level 3, the <ratio> d..
range (@counter-style)
rangeWhen defining custom counter styles, the range descriptor lets the author specify a range of counter values over which the style is applied. If a counter value is outside the specified range, the..
radial-gradient()
radial-gradient()The radial-gradient() CSS function creates an image consisting of a progressive transition between two or more colors that radiate from an origin. Its shape may be a circle or an elli..
length#rem
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
angle#rad
<angle>The <angle> CSS data type represents an angle value expressed in degrees, gradians, radians, or turns. It is used, for example, in <gradient>s and in some transform functions...
quotes
quotesThe quotes CSS property sets how the browser should render quotation marks that are added using the open-quotes or close-quotes values of the CSS content property.Syntax/* Keyword value */ quote..
length#Q
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
@property
@propertyExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The @property CSS at-rule is part of the CSS Houdini umbrella ..
prefix (@counter-style)
prefixThe prefix descriptor of the @counter-style rule specifies content that will be prepended to the marker representation. If not specified, the default value will be "" (an empty string).Syntax/* ..
position
positionThe position CSS property sets how an element is positioned in a document. The top, right, bottom, and left properties determine the final location of positioned elements.Syntaxposition: stati..
<position>
<position>The <position> (or <bg-position>) CSS data type denotes a two-dimensional coordinate used to set a location relative to an element box. It is used in the background-positio..
polygon()
<basic-shape>The <basic-shape> CSS data type represents a shape used in the clip-path, shape-outside, and offset-path properties.SyntaxThe <basic-shape> data type is defined with one..
pointer-events
pointer-eventsThe pointer-events CSS property sets under what circumstances (if any) a particular graphic element can become the target of pointer events.Syntax/* Keyword values */ pointer-events: aut..
:playing
:playingExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The :playing CSS pseudo-class selector is a resource state pseu..
:placeholder-shown
:placeholder-shownThe :placeholder-shown CSS pseudo-class represents any <input> or <textarea> element that is currently displaying placeholder text. /* Selects any element with an active ..
::placeholder
::placeholderThe ::placeholder CSS pseudo-element represents the placeholder text in an <input> or <textarea> element. ::placeholder { color: blue; font-size: 1.5em; } Only the subset..
place-self
place-selfThe place-self CSS shorthand property allows you to align an individual item in both the block and inline directions at once (i.e. the align-self and justify-self properties) in a relevant l..
place-items
place-itemsThe CSS place-items shorthand property allows you to align items along both the block and inline directions at once (i.e. the align-items and justify-items properties) in a relevant layout ..
place-content
place-contentThe place-content CSS shorthand property allows you to align content along both the block and inline directions at once (i.e. the align-content and justify-content properties) in a releva..
:picture-in-picture
:picture-in-pictureThe :picture-in-picture CSS pseudo-class matches the element which is currently in picture-in-picture mode.Syntax:picture-in-pictureUsage notesThe :picture-in-picture pseudo-class l..
perspective-origin
perspective-originThe perspective-origin CSS property determines the position at which the viewer is looking. It is used as the vanishing point by the perspective property. The perspective-origin and ..
perspective()
perspective() The perspective() CSS function defines a transformation that sets the distance between the user and the z=0 plane, the perspective from which the viewer would be if the 2-dimensional..
perspective
perspectiveThe perspective CSS property determines the distance between the z=0 plane and the user in order to give a 3D-positioned element some perspective.Syntax/* Keyword value */ perspective: none..
<percentage>
<percentage>The <percentage> CSS data type represents a percentage value. It is often used to define a size as relative to an element's parent object. Numerous properties can use percentag..
:paused
:pausedExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The :paused CSS pseudo-class selector is a resource state pseudo..
path()
path()The path() CSS function accepts an SVG path string, and is used in CSS Shapes and CSS Motion Path to enable a shape to be drawn.SyntaxWhen used in offset-path or d: path(<string>) When us..
:past
:pastThe :past CSS pseudo-class selector is a time-dimensional pseudo-class that will match for any element which appears entirely before an element that matches :current. For example in a video with ..
::part
::part()The ::part CSS pseudo-element represents any element within a shadow tree that has a matching part attribute. custom-element::part(foo) { /* Styles to apply to the `foo` part */ } Syntax::pa..
paint-order
paint-orderThe paint-order CSS property lets you control the order in which the fill and stroke (and painting markers) of text content and shapes are drawn.Syntax/* Normal */ paint-order: normal; /* ..
paint()
paint()Experimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The paint() CSS function defines an <image> value generate..
page-break-inside
page-break-inside Warning: This property has been replaced by the break-inside property. The page-break-inside CSS property adjusts page breaks inside the current element. /* Keyword values */ page..
page-break-before
page-break-before Warning: This property has been replaced by the break-before property. The page-break-before CSS property adjusts page breaks before the current element. This property applies to ..
page-break-after
page-break-after Warning: This property has been replaced by the break-after property. The page-break-after CSS property adjusts page breaks after the current element. /* Keyword values */ page-bre..
@page
@pageThe @page CSS at-rule is used to modify some CSS properties when printing a document.Syntax@page { margin: 1cm; } @page :first { margin: 2cm; } Descriptors size Specifies the target..
padding-top
padding-topThe padding-top CSS property sets the height of the padding area on the top of an element. An element's padding area is the space between its content and its border. Note: The paddi..
padding-right
padding-rightThe padding-right CSS property sets the width of the padding area on the right of an element. An element's padding area is the space between its content and its border. Note: The paddi..
padding-left
padding-leftThe padding-left CSS property sets the width of the padding area to the left of an element. An element's padding area is the space between its content and its border. Note: The padding ..
padding-inline-start
padding-inline-startThe padding-inline-start CSS property defines the logical inline start padding of an element, which maps to a physical padding depending on the element's writing mode, directionali..
padding-inline-end
padding-inline-endThe padding-inline-end CSS property defines the logical inline end padding of an element, which maps to a physical padding depending on the element's writing mode, directionality, an..
padding-inline
padding-inlineThe padding-inline CSS shorthand property defines the logical inline start and end padding of an element, which maps to physical padding properties depending on the element's writing mod..
padding-bottom
padding-bottomThe padding-bottom CSS property sets the height of the padding area on the bottom of an element. An element's padding area is the space between its content and its border. Note: ..
padding-block-start
padding-block-startThe padding-block-start CSS property defines the logical block start padding of an element, which maps to a physical padding depending on the element's writing mode, directionality,..
padding-block-end
padding-block-endThe padding-block-end CSS property defines the logical block end padding of an element, which maps to a physical padding depending on the element's writing mode, directionality, and t..
padding-block
padding-blockThe padding-block CSS shorthand property defines the logical block start and end padding of an element, which maps to physical padding properties depending on the element's writing mode, ..
padding
paddingThe padding CSS shorthand property sets the padding area on all four sides of an element at once. An element's padding area is the space between its content and its border. Note: Padding cre..
pad (@counter-style)
padThe pad descriptor can be used with custom counter style definitions when you need the marker representations to have a minimum length.Syntaxpad: 3 "0"; Values <integer> && <symb..
length#px
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
length#pt
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
length#pc
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
Pseudo-elements
Pseudo-elementsA CSS pseudo-element is a keyword added to a selector that lets you style a specific part of the selected element(s). For example, ::first-line can be used to change the font of the fir..
Pseudo-classes
Pseudo-classesA CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s). For example, :hover can be used to change a button's color when the user's ..
overscroll-behavior-y
overscroll-behavior-yThe overscroll-behavior-y CSS property sets the browser's behavior when the vertical boundary of a scrolling area is reached. See overscroll-behavior for a full explanation. /* Ke..
overscroll-behavior-x
overscroll-behavior-xThe overscroll-behavior-x CSS property sets the browser's behavior when the horizontal boundary of a scrolling area is reached. See overscroll-behavior for a full explanation. /* ..
overscroll-behavior-inline
overscroll-behavior-inlineThe overscroll-behavior-inline CSS property sets the browser's behavior when the inline direction boundary of a scrolling area is reached. See overscroll-behavior for a full ..
overscroll-behavior-block
overscroll-behavior-blockThe overscroll-behavior-block CSS property sets the browser's behavior when the block direction boundary of a scrolling area is reached. See overscroll-behavior for a full exp..
overscroll-behavior
overscroll-behaviorThe overscroll-behavior CSS property sets what a browser does when reaching the boundary of a scrolling area. It's a shorthand for overscroll-behavior-x and overscroll-behavior-y. B..
overflow-y
overflow-yThe overflow-y CSS property sets what shows when content overflows a block-level element's top and bottom edges. This may be nothing, a scroll bar, or the overflow content.Syntax/* Keyword v..
overflow-x
overflow-xThe overflow-x CSS property sets what shows when content overflows a block-level element's left and right edges. This may be nothing, a scroll bar, or the overflow content.Syntax/* Keyword v..
overflow-wrap
overflow-wrapThe overflow-wrap CSS property applies to inline elements, setting whether the browser should insert line breaks within an otherwise unbreakable string to prevent text from overflowing it..
overflow-inline
overflow-inlineThe overflow-inline CSS property sets what shows when content overflows the inline start and end edges of a box. This may be nothing, a scroll bar, or the overflow content. Note: The..
overflow-clip-margin
overflow-clip-marginThe overflow-clip-margin CSS property determines how far outside its bounds an element with overflow: clip may be painted before being clipped.Syntaxoverflow-clip-margin: 20px; ove..
overflow-block
overflow-blockThe overflow-block CSS property sets what shows when content overflows the block start and block end edges of a box. This may be nothing, a scroll bar, or the overflow content. Note: ..
overflow-anchor
overflow-anchorThe overflow-anchor CSS property provides a way to opt out of the browser's scroll anchoring behavior, which adjusts scroll position to minimize content shifts. Scroll anchoring behavio..
overflow
overflowThe overflow CSS shorthand property sets the desired behavior for an element's overflow — i.e. when an element's content is too big to fit in its block formatting context — in both directi..
outline-width
outline-widthThe CSS outline-width property sets the thickness of an element's outline. An outline is a line that is drawn around an element, outside the border. It is often more convenient to use the..
outline-style
outline-styleThe outline-style CSS property sets the style of an element's outline. An outline is a line that is drawn around an element, outside the border. It is often more convenient to use the sho..
outline-offset
outline-offsetThe outline-offset CSS property sets the amount of space between an outline and the edge or border of an element.Syntax/* <length> values */ outline-offset: 3px; outline-offset: 0...
outline-color
outline-colorThe outline-color CSS property sets the color of an element's outline.Syntax/* <color> values */ outline-color: #f92525; outline-color: rgb(30,222,121); outline-color: blue; /* Key..
outline
outlineThe outline CSS shorthand property set all the outline properties in a single declaration.Constituent propertiesThis property is a shorthand for the following CSS properties: outline-color ..
:out-of-range
:out-of-rangeThe :out-of-range CSS pseudo-class represents an <input> element whose current value is outside the range limits specified by the min and max attributes. /* Selects any <input>..
orphans
orphansThe orphans CSS property sets the minimum number of lines in a block container that must be shown at the bottom of a page, region, or column. /* <integer> values */ orphans: 2; orphans: 3..
ornaments()
font-variant-alternatesThe font-variant-alternates CSS property controls the usage of alternate glyphs. These alternate glyphs may be referenced by alternative names defined in @font-feature-values. /..
@ornaments
@font-feature-valuesThe @font-feature-values CSS at-rule lets you use a common name in the font-variant-alternates property for features activated differently in OpenType. This can help simplify your ..
orientation (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
order
orderThe order CSS property sets the order to lay out an item in a flex or grid container. Items in a container are sorted by ascending order value and then by their source code order.Syntax/* <int..
:optional
:optionalThe :optional CSS pseudo-class represents any <input>, <select>, or <textarea> element that does not have the required attribute set on it. /* Selects any optional <input..
opacity()
opacity()The opacity() CSS function applies transparency to the samples in the input image. Its result is a <filter-function>. Note: This function is similar to the more established opacity p..
opacity
opacityThe opacity CSS property sets the opacity of an element. Opacity is the degree to which content behind an element is hidden, and is the opposite of transparency.Syntaxopacity: 0.9 opacity: 90% ..
:only-of-type
:only-of-typeThe :only-of-type CSS pseudo-class represents an element that has no siblings of the same type. /* Selects each <p>, but only if it is the */ /* only <p> element inside its pa..
:only-child
:only-childThe :only-child CSS pseudo-class represents an element without any siblings. This is the same as :first-child:last-child or :nth-child(1):nth-last-child(1), but with a lower specificity. /*..
offset-rotate
offset-rotateThe offset-rotate CSS property defines the orientation/direction of the element as it is positioned along the offset-path. Note: Early versions of the spec called this property motion-..
offset-position
offset-positionExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The offset-position CSS property defines the initial pos..
offset-path
offset-pathThe offset-path CSS property specifies a motion path for an element to follow and defines the element's positioning within the parent container or SVG coordinate system.Syntax/* Default */ ..
offset-distance
offset-distanceThe offset-distance CSS property specifies a position along an offset-path for an element to be placed.Syntax/* Default value */ offset-distance: 0; /* the middle of the offset-path */..
offset-anchor
offset-anchorThe offset-anchor CSS property specifies the point inside the box of an element travelling along an offset-path that is actually moving along the path.Syntax/* Keyword values */ offset-an..
offset
offsetThe offset CSS shorthand property sets all the properties required for animating an element along a defined path. Note: Early versions of the spec called this property motion. Constituent pro..
object-position
object-positionThe object-position CSS property specifies the alignment of the selected replaced element's contents within the element's box. Areas of the box which aren't covered by the replaced elem..
object-fit
object-fitThe object-fit CSS property sets how the content of a replaced element, such as an <img> or <video>, should be resized to fit its container. You can alter the alignment of the re..
<number>
<number>The <number> CSS data type represents a number, being either an integer or a number with a fractional component.SyntaxThe syntax of <number> extends the syntax of <integer..
:nth-of-type
:nth-of-type()The :nth-of-type() CSS pseudo-class matches elements based on their position among siblings of the same type (tag name). /* Selects every fourth <p> element among any group of s..
:nth-last-of-type
:nth-last-of-type()The :nth-last-of-type() CSS pseudo-class matches elements based on their position among siblings of the same type (tag name), counting from the end. /* Selects every fourth <p>..
:nth-last-col
:nth-last-colExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The :nth-last-col() CSS pseudo-class is designed for table..
:nth-last-child
:nth-last-child()The :nth-last-child() CSS pseudo-class matches elements based on their position among a group of siblings, counting from the end. /* Selects every fourth element among any group of..
:nth-col
:nth-colExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The :nth-col() CSS pseudo-class is designed for tables and grid..
:nth-child
:nth-child()The :nth-child() CSS pseudo-class matches elements based on their position among a group of siblings. /* Selects the second <li> element in a list */ li:nth-child(2) { color: lime;..
:not
:not()The :not() CSS pseudo-class represents elements that do not match a list of selectors. Since it prevents specific items from being selected, it is known as the negation pseudo-class. /* Selects ..
negative (@counter-style)
negativeWhen defining custom counter styles, the negative descriptor lets you alter the representations of negative counter values, by providing a way to specify symbols to be appended or prepended to..
@namespace
@namespace@namespace is an at-rule that defines XML namespaces to be used in a CSS style sheet.Syntax/* Default namespace */ @namespace url(XML-namespace-URL); @namespace "XML-namespace-URL"; /* Pref..
time#ms
<time>The <time> CSS data type represents a time value expressed in seconds or milliseconds. It is used in animation, transition, and related properties.SyntaxThe <time> data type co..
mix-blend-mode
mix-blend-modeThe mix-blend-mode CSS property sets how an element's content should blend with the content of the element's parent and the element's background.Syntax/* Keyword values */ mix-blend-mode..
minmax()
minmax()The minmax() CSS function defines a size range greater than or equal to min and less than or equal to max. It is used with CSS Grids.Syntax/* <inflexible-breadth>, <track-breadth> ..
min-zoom (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
min-width (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
min-width
min-widthThe min-width CSS property sets the minimum width of an element. It prevents the used value of the width property from becoming smaller than the value specified for min-width. The element's w..
min-inline-size
min-inline-sizeThe min-inline-size CSS property defines the horizontal or vertical minimal size of an element's block, depending on its writing mode. It corresponds to either the min-width or the min-..
min-height (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
min-height
min-heightThe min-height CSS property sets the minimum height of an element. It prevents the used value of the height property from becoming smaller than the value specified for min-height. The elemen..
min-block-size
min-block-sizeThe min-block-size CSS property defines the minimum horizontal or vertical size of an element's block, depending on its writing mode. It corresponds to either the min-width or the min-he..
min()
min()The min() CSS function lets you set the smallest (most negative) value from a list of comma-separated expressions as the value of a CSS property value. The min() function can be used anywhere a &..
@media
@mediaThe @media CSS at-rule can be used to apply part of a style sheet based on the result of one or more media queries. With it, you specify a media query and a block of CSS to apply to the document..
max-zoom (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
max-width (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
max-width
max-widthThe max-width CSS property sets the maximum width of an element. It prevents the used value of the width property from becoming larger than the value specified by max-width. max-width overrid..
max-inline-size
max-inline-sizeThe max-inline-size CSS property defines the horizontal or vertical maximum size of an element's block, depending on its writing mode. It corresponds to either the max-width or the max-..
max-height (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
max-height
max-heightThe max-height CSS property sets the maximum height of an element. It prevents the used value of the height property from becoming larger than the value specified for max-height. max-height ..
max-block-size
max-block-sizeThe max-block-size CSS property specifies the maximum size of an element in the direction opposite that of the writing direction as specified by writing-mode. That is, if the writing dir..
max()
max()The max() CSS function lets you set the largest (most positive) value from a list of comma-separated expressions as the value of a CSS property value. The max() function can be used anywhere a &l..
matrix3d()
matrix3d() The matrix3d() CSS function defines a 3D transformation as a 4x4 homogeneous matrix. Its result is a <transform-function> data type. SyntaxThe matrix3d() function is specified wit..
matrix()
matrix() The matrix() CSS function defines a homogeneous 2D transformation matrix. Its result is a <transform-function> data type. Note: matrix(a, b, c, d, tx, ty) is a shorthand fo..
math-style
math-styleThe math-style property indicates whether MathML equations should render with normal or compact height.Syntax/* Keyword values */ math-style: normal; math-style: compact; /* Global values *..
masonry-auto-flow
masonry-auto-flowExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The masonry-auto-flow CSS property modifies how items ..
mask-type
mask-typeThe mask-type CSS property sets whether an SVG <mask> element is used as a luminance or an alpha mask. It applies to the <mask> element itself. /* Keyword values */ mask-type: lum..
mask-size
mask-sizeThe mask-size CSS property specifies the sizes of the mask images. The size of the image can be fully or partially constrained in order to preserve its intrinsic ratio. /* Keywords syntax */ ..
mask-repeat
mask-repeatThe mask-repeat CSS property sets how mask images are repeated. A mask image can be repeated along the horizontal axis, the vertical axis, both axes, or not repeated at all. /* One-value sy..
mask-position
mask-positionThe mask-position CSS property sets the initial position, relative to the mask position layer set by mask-origin, for each defined mask image. /* Keyword values */ mask-position: top; mas..
mask-origin
mask-originThe mask-origin CSS property sets the origin of a mask. /* Keyword values */ mask-origin: content-box; mask-origin: padding-box; mask-origin: border-box; mask-origin: margin-box; mask-origi..
mask-mode
mask-modeThe mask-mode CSS property sets whether the mask reference defined by mask-image is treated as a luminance or alpha mask. /* Keyword values */ mask-mode: alpha; mask-mode: luminance; mask-mod..
mask-image
mask-image The mask-image CSS property sets the image that is used as mask layer for an element. By default this means the alpha channel of the mask image will be multiplied with the alpha channel..
mask-composite
mask-compositeThe mask-composite CSS property represents a compositing operation used on the current mask layer with the mask layers below it. /* Keyword values */ mask-composite: add; mask-composite:..
mask-clip
mask-clipThe mask-clip CSS property determines the area which is affected by a mask. The painted content of an element must be restricted to this area. /* <geometry-box> values */ mask-clip: con..
mask-border-width
mask-border-widthThe mask-border-width CSS property sets the width of an element's mask border.Syntax/* Keyword value */ mask-border-width: auto; /* <length> value */ mask-border-width: 1rem; ..
mask-border-source
mask-border-sourceThe mask-border-source CSS property sets the source image used to create an element's mask border. The mask-border-slice property is used to divide the source image into regions, whi..
mask-border-slice
mask-border-sliceThe mask-border-slice CSS property divides the image set by mask-border-source into regions. These regions are used to form the components of an element's mask border.Syntax/* All sid..
mask-border-repeat
mask-border-repeatThe mask-border-repeat CSS property sets how the edge regions of a source image are adjusted to fit the dimensions of an element's mask border.Syntax/* Keyword value */ mask-border-r..
mask-border-outset
mask-border-outsetThe mask-border-outset CSS property specifies the distance by which an element's mask border is set out from its border box.Syntax/* <length> value */ mask-border-outset: 1rem;..
mask-border-mode
mask-border-modeThe mask-border-mode CSS property specifies the blending mode used in a mask border.Syntax/* Keyword values */ mask-border-mode: luminance; mask-border-mode: alpha; /* Global values *..
mask-border
mask-borderThe mask-border CSS shorthand property lets you create a mask along the edge of an element's border.Constituent propertiesThis property is a shorthand for the following CSS properties: m..
mask
maskThe mask CSS shorthand property hides an element (partially or fully) by masking or clipping the image at specific points. Note: As well as the properties listed below, the mask shorthand also ..
::marker
::markerThe ::marker CSS pseudo-element selects the marker box of a list item, which typically contains a bullet or number. It works on any element or pseudo-element set to display: list-item, such as..
margin-trim
margin-trimThe margin-trim property allows the container to trim the margins of its children where they adjoin the container's edges.Syntaxmargin-trim: none; margin-trim: in-flow; margin-trim: all; /..
margin-top
margin-topThe margin-top CSS property sets the margin area on the top of an element. A positive value places it farther from its neighbors, while a negative value places it closer. This property has n..
margin-right
margin-rightThe margin-right CSS property sets the margin area on the right side of an element. A positive value places it farther from its neighbors, while a negative value places it closer. The vert..
margin-left
margin-leftThe margin-left CSS property sets the margin area on the left side of an element. A positive value places it farther from its neighbors, while a negative value places it closer. The vertica..
margin-inline-start
margin-inline-startThe margin-inline-start CSS property defines the logical inline start margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, ..
margin-inline-end
margin-inline-endThe margin-inline-end CSS property defines the logical inline end margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and te..
margin-inline
margin-inlineThe margin-inline CSS shorthand property is a shorthand property that defines both the logical inline start and end margins of an element, which maps to physical margins depending on the ..
margin-bottom
margin-bottomThe margin-bottom CSS property sets the margin area on the bottom of an element. A positive value places it farther from its neighbors, while a negative value places it closer. This ..
margin-block-start
margin-block-startThe margin-block-start CSS property defines the logical block start margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and..
margin-block-end
margin-block-endThe margin-block-end CSS property defines the logical block end margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and text ..
margin-block
margin-blockThe margin-block CSS shorthand property defines the logical block start and end margins of an element, which maps to physical margins depending on the element's writing mode, directionalit..
margin
marginThe margin CSS shorthand property sets the margin area on all four sides of an element.Constituent propertiesThis property is a shorthand for the following CSS properties: margin-bottom mar..
length#mm
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
:local-link
:local-linkThe :local-link CSS pseudo-class represents a link to the same document. Therefore an element that is the source anchor of a hyperlink whose target's absolute URL matches the element's own ..
local()
srcThe src CSS descriptor of the @font-face rule specifies the resource containing font data. It is required for the @font-face rule to be valid.Syntax/* <url> values */ src: url(https://someweb..
list-style-type
list-style-typeThe list-style-type CSS property sets the marker (such as a disc, character, or custom counter style) of a list item element. The color of the marker will be the same as the computed co..
list-style-position
list-style-positionThe list-style-position CSS property sets the position of the ::marker relative to a list item. It is often more convenient to use the shorthand list-style. Note: This property i..
list-style-image
list-style-imageThe list-style-image CSS property sets an image to be used as the list item marker. It is often more convenient to use the shorthand list-style. Note: This property is applied to li..
list-style
list-styleThe list-style CSS shorthand property allows you to set all the list style properties at once. Note: This property is applied to list items, i.e., elements with display: list-item; . By d..
:link
:linkThe :link CSS pseudo-class represents an element that has not yet been visited. It matches every unvisited <a> or <area> element that has an href attribute. /* Selects any <a> t..
linear-gradient()
linear-gradient()The linear-gradient() CSS function creates an image consisting of a progressive transition between two or more colors along a straight line. Its result is an object of the <gradien..
line-height-step
line-height-stepExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The line-height-step CSS property sets the step unit fo..
line-height
line-heightThe line-height CSS property sets the height of a line box. It's commonly used to set the distance between lines of text. On block-level elements, it specifies the minimum height of line bo..
line-gap-override (@font-face)
line-gap-overrideThe line-gap-override CSS descriptor defines the line-gap metric for the font. The line-gap metric is the font recommended line-gap or external leading.Syntaxline-gap-override: normal..
line-break
line-breakThe line-break CSS property sets how to break lines of Chinese, Japanese, or Korean (CJK) text when working with punctuation and symbols. /* Keyword values */ line-break: auto; line-break: l..
letter-spacing
letter-spacingThe letter-spacing CSS property sets the horizontal spacing behavior between text characters. This value is added to the natural spacing between characters while rendering the text. Posi..
<length-percentage>
<length-percentage>The <length-percentage> CSS data type represents a value that can be either a <length> or a <percentage>.SyntaxRefer to the documentation for <length> ..
<length>
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
@left-bottom
@pageThe @page CSS at-rule is used to modify some CSS properties when printing a document.Syntax@page { margin: 1cm; } @page :first { margin: 2cm; } Descriptors size Specifies the target..
left
leftThe left CSS property participates in specifying the horizontal position of a positioned element. It has no effect on non-positioned elements.Syntax/* <length> values */ left: 3px; left: 2.4..
:left
:leftThe :left CSS pseudo-class, used with the @page at-rule, represents all left-hand pages of a printed document. /* Selects any left-hand pages when printing */ @page :left { margin: 2in 3in; } ..
@layer
@layerExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The @layer CSS at-rule declares a cascade layer. Rules within a c..
:last-of-type
:last-of-typeThe :last-of-type CSS pseudo-class represents the last element of its type among a group of sibling elements. /* Selects any <p> that is the last element of its type among its si..
:last-child
:last-childThe :last-child CSS pseudo-class represents the last element among a group of sibling elements. /* Selects any <p> that is the last element among its siblings */ p:last-child { c..
:lang
:lang()The :lang() CSS pseudo-class matches elements based on the language they are determined to be in. /* Selects any <p> in English (en) */ p:lang(en) { quotes: '\201C' '\201D' '\2018' '\20..
@keyframes
@keyframesThe @keyframes CSS at-rule controls the intermediate steps in a CSS animation sequence by defining styles for keyframes (or waypoints) along the animation sequence. This gives more control o..
frequency#kHz
<frequency>The <frequency> CSS data type represents a frequency dimension, such as the pitch of a speaking voice. It is not currently used in any CSS properties.SyntaxThe <frequency>..
justify-tracks
justify-tracksExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The justify-tracks CSS property sets the alignment in the..
justify-self
justify-selfThe CSS justify-self property sets the way a box is justified inside its alignment container along the appropriate axis. The effect of this property is dependent of the layout mode we are ..
justify-items
justify-itemsThe CSS justify-items property defines the default justify-self for all items of the box, giving them all a default way of justifying each box along the appropriate axis. The effect of th..
justify-content
justify-contentThe CSS justify-content property defines how the browser distributes space between and around content items along the main-axis of a flex container, and the inline axis of a grid contai..
length#in
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
length#ic
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
isolation
isolationThe isolation CSS property determines whether an element must create a new stacking context. This property is especially helpful when used in conjunction with mix-blend-mode and z-index.Synta..
:is
:is() (:matches(), :any()) Note: :matches() was renamed to :is() in CSSWG issue #3258. The :is() CSS pseudo-class function takes a selector list as its argument, and selects any element that can be..
invert()
invert()The invert() CSS function inverts the color samples in the input image. Its result is a <filter-function>.Syntaxinvert(amount) Parameters amount The amount of the conversion, sp..
:invalid
:invalidThe :invalid CSS pseudo-class represents any <input> or other <form> element whose contents fail to validate. /* Selects any invalid <input> */ input:invalid { background-c..
<integer>
<integer>The <integer> CSS data type is a special type of <number> that represents a whole number, whether positive or negative. Integers can be used in numerous CSS properties, such..
inset-inline-start
inset-inline-startThe inset-inline-start CSS property defines the logical inline start inset of an element, which maps to a physical offset depending on the element's writing mode, directionality, and..
inset-inline-end
inset-inline-endThe inset-inline-end CSS property defines the logical inline end inset of an element, which maps to a physical offset depending on the element's writing mode, directionality, and text ..
inset-inline
inset-inlineThe inset-inline CSS property defines the logical start and end offsets of an element in the inline direction, which maps to physical offsets depending on the element's writing mode, direc..
inset-block-start
inset-block-startThe inset-block-start CSS property defines the logical block start offset of an element, which maps to a physical inset depending on the element's writing mode, directionality, and te..
inset-block-end
inset-block-endThe inset-block-end CSS property defines the logical block end offset of an element, which maps to a physical inset depending on the element's writing mode, directionality, and text ori..
inset-block
inset-blockThe inset-block CSS property defines the logical block start and end offsets of an element, which maps to physical offsets depending on the element's writing mode, directionality, and text ..
inset()
<basic-shape>The <basic-shape> CSS data type represents a shape used in the clip-path, shape-outside, and offset-path properties.SyntaxThe <basic-shape> data type is defined with one..
inset
insetThe inset CSS property is a shorthand that corresponds to the top, right, bottom, and/or left properties. It has the same multi-value syntax of the margin shorthand. While part of the CSS Logical..
inline-size
inline-sizeThe inline-size CSS property defines the horizontal or vertical size of an element's block, depending on its writing mode. It corresponds to either the width or the height property, dependi..
initial-value (@property)
initial-valueExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The initial-value CSS descriptor is required when using th..
initial-letter-align
initial-letter-alignExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The initial-letter-align CSS property specifies the..
initial-letter
initial-letterThe initial-letter CSS property sets styling for dropped, raised, and sunken initial letters. /* Keyword values */ initial-letter: normal; /* Numeric values */ initial-letter: 1.5; /..
initial
initialThe initial CSS keyword applies the initial (or default) value of a property to an element. It can be applied to any CSS property. This includes the CSS shorthand all, with which initial can be..
inherits (@property)
inheritsExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The inherits CSS descriptor is required when using the @propert..
inherit
inheritThe inherit CSS keyword causes the element for which it is specified to take the computed value of the property from its parent element. It can be applied to any CSS property, including the CSS..
:indeterminate
:indeterminateThe :indeterminate CSS pseudo-class represents any form element whose state is indeterminate, such as checkboxes which have their HTML indeterminate attribute set to true, radio buttons ..
:in-range
:in-rangeThe :in-range CSS pseudo-class represents an <input> element whose current value is within the range limits specified by the min and max attributes. /* Selects any <input>, but on..
@import
@importThe @import CSS at-rule is used to import style rules from other style sheets.Syntax@import url; @import url list-of-media-queries; @import url supports( supports-query ); @import url supports(..
image-set()
image-set()The image-set() CSS functional notation is a method of letting the browser pick the most appropriate CSS image from a given set, primarily for high pixel density screens. Resolution and ban..
image-resolution
image-resolutionExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The image-resolution CSS property specifies the intrins..
image-rendering
image-renderingThe image-rendering CSS property sets an image scaling algorithm. The property applies to an element itself, to any images set in its other properties, and to its descendants. The user ..
image-orientation
image-orientationThe image-orientation CSS property specifies a layout-independent correction to the orientation of an image. /* keyword values */ image-orientation: none; image-orientation: from-imag..
image()
<image>The <image> CSS data type represents a two-dimensional image.SyntaxThe <image> data type can be represented with any of the following: An image denoted by the url() data ty..
<image>
<image>The <image> CSS data type represents a two-dimensional image.SyntaxThe <image> data type can be represented with any of the following: An image denoted by the url() data ty..
<ident>
identThe <ident> CSS data type denotes an arbitrary string used as an identifier.SyntaxThe syntax of <custom-ident> is similar to CSS identifiers (such as property names), except that it i..
hyphens
hyphensThe hyphens CSS property specifies how words should be hyphenated when text wraps across multiple lines. It can prevent hyphenation entirely, hyphenate at manually-specified points within the t..
hyphenate-character
hyphenate-characterThe hyphenate-character CSS property sets the character (or string) used at the end of a line before a hyphenation break. Both automatic and soft hyphens are displayed according to ..
hue-rotate()
hue-rotate()The hue-rotate() CSS function rotates the hue of an element and its contents. Its result is a <filter-function>.Syntaxhue-rotate(angle) Parameters angle The relative change ..
hsla()
<color> The <color> CSS data type represents a color. A <color> may also include an alpha-channel transparency value, indicating how the color should composite with its backgroun..
hsl()
<color> The <color> CSS data type represents a color. A <color> may also include an alpha-channel transparency value, indicating how the color should composite with its backgroun..
:hover
:hoverThe :hover CSS pseudo-class matches when the user interacts with an element with a pointing device, but does not necessarily activate it. It is generally triggered when the user hovers over an e..
:host-context()
:host-context()The :host-context() CSS pseudo-class function selects the shadow host of the shadow DOM containing the CSS it is used inside (so you can select a custom element from inside its shadow D..
:host()
:host()The :host() CSS pseudo-class function selects the shadow host of the shadow DOM containing the CSS it is used inside (so you can select a custom element from inside its shadow DOM) — but only..
height (@viewport)
@viewportDeprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of bein..
height
heightThe height CSS property specifies the height of an element. By default, the property defines the height of the content area. If box-sizing is set to border-box, however, it instead determines th..
:has
:has()The :has() CSS pseudo-class represents an element if any of the selectors passed as parameters (relative to the :scope of the given element) match at least one element. /* Selects any <a>,..
hanging-punctuation
hanging-punctuationThe hanging-punctuation CSS property specifies whether a punctuation mark should hang at the start or end of a line of text. Hanging punctuation may be placed outside the line box. ..
frequency#Hz
<frequency>The <frequency> CSS data type represents a frequency dimension, such as the pitch of a speaking voice. It is not currently used in any CSS properties.SyntaxThe <frequency>..
grid-template-rows
grid-template-rowsThe grid-template-rows CSS property defines the line names and track sizing functions of the grid rows.Syntax/* Keyword value */ grid-template-rows: none; /* <track-list> valu..
grid-template-columns
grid-template-columnsThe grid-template-columns CSS property defines the line names and track sizing functions of the grid columns.Syntax/* Keyword value */ grid-template-columns: none; /* <track-l..
grid-template-areas
grid-template-areasThe grid-template-areas CSS property specifies named grid areas, establishing the cells in the grid and assigning them names. Those areas are not associated with any particular grid..
grid-template
grid-templateThe grid-template CSS property is a shorthand property for defining grid columns, rows, and areas.Constituent propertiesThis property is a shorthand for the following CSS properties: g..
grid-row-start
grid-row-startThe grid-row-start CSS property specifies a grid item's start position within the grid row by contributing a line, a span, or nothing (automatic) to its grid placement, thereby specifyin..
grid-row-end
grid-row-endThe grid-row-end CSS property specifies a grid item's end position within the grid row by contributing a line, a span, or nothing (automatic) to its grid placement, thereby specifying the ..
grid-row
grid-rowThe grid-row CSS shorthand property specifies a grid item's size and location within the grid row by contributing a line, a span, or nothing (automatic) to its grid placement, thereby specifyi..
grid-column-start
grid-column-startThe grid-column-start CSS property specifies a grid item's start position within the grid column by contributing a line, a span, or nothing (automatic) to its grid placement. This sta..
grid-column-end
grid-column-endThe grid-column-end CSS property specifies a grid item's end position within the grid column by contributing a line, a span, or nothing (automatic) to its grid placement, thereby specif..
grid-column
grid-columnThe grid-column CSS shorthand property specifies a grid item's size and location within a grid column by contributing a line, a span, or nothing (automatic) to its grid placement, thereby s..
grid-auto-rows
grid-auto-rowsThe grid-auto-rows CSS property specifies the size of an implicitly-created grid row track or pattern of tracks. If a grid item is positioned into a row that is not explicitly sized by g..
grid-auto-flow
grid-auto-flowThe grid-auto-flow CSS property controls how the auto-placement algorithm works, specifying exactly how auto-placed items get flowed into the grid.Syntax/* Keyword values */ grid-auto-fl..
grid-auto-columns
grid-auto-columnsThe grid-auto-columns CSS property specifies the size of an implicitly-created grid column track or pattern of tracks. If a grid item is positioned into a column that is not explicitl..
grid-area
grid-areaThe grid-area CSS shorthand property specifies a grid item's size and location within a grid by contributing a line, a span, or nothing (automatic) to its grid placement, thereby specifying t..
grid
gridThe grid CSS property is a shorthand property that sets all of the explicit and implicit grid properties in a single declaration. Using grid you specify one axis using grid-template-rows or grid-t..
grayscale()
grayscale()The grayscale() CSS function converts the input image to grayscale. Its result is a <filter-function>.Syntaxgrayscale(amount) Parameters amount The amount of the conversion, ..
::grammar-error
::grammar-errorExperimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The ::grammar-error CSS pseudo-element represents a text..
<gradient>
<gradient>The <gradient> CSS data type is a special type of <image> that consists of a progressive transition between two or more colors. A CSS gradient has no intrinsic dimensions; ..
gap
gap (grid-gap)The gap CSS property sets the gaps (gutters) between rows and columns. It is a shorthand for row-gap and column-gap.Syntax/* One <length> value */ gap: 20px; gap: 1em; gap: 3vmin; ..
angle#grad
<angle>The <angle> CSS data type represents an angle value expressed in degrees, gradians, radians, or turns. It is used, for example, in <gradient>s and in some transform functions...
:future
:futureThe :future CSS pseudo-class selector is a time-dimensional pseudo-class that will match for any element which appears entirely after an element that matches :current. For example in a video wi..
:fullscreen
:fullscreenThe :fullscreen CSS pseudo-class matches every element which is currently in fullscreen mode. If multiple elements have been put into fullscreen mode, this selects them all.Syntax:fullscree..
<frequency-percentage>
<frequency-percentage>Experimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The <frequency-percentage> CSS data t..
<frequency>
<frequency>The <frequency> CSS data type represents a frequency dimension, such as the pitch of a speaking voice. It is not currently used in any CSS properties.SyntaxThe <frequency>..
format()
srcThe src CSS descriptor of the @font-face rule specifies the resource containing font data. It is required for the @font-face rule to be valid.Syntax/* <url> values */ src: url(https://someweb..
forced-color-adjust
forced-color-adjustThe forced-color-adjust CSS property allows authors to opt certain elements out of forced colors mode. This then restores the control of those values to CSS.Syntaxforced-color-adjus..
font-weight (@font-face)
font-weightThe font-weight CSS descriptor allows authors to specify font weights for the fonts specified in the @font-face rule. The font-weight property can separately be used to set how thick or thi..
font-weight
font-weightThe font-weight CSS property sets the weight (or boldness) of the font. The weights available depend on the font-family that is currently set.Syntax/* Keyword values */ font-weight: normal;..
font-variation-settings (@font-face)
font-variation-settingsThe font-variation-settings CSS descriptor allows authors to specify low-level OpenType or TrueType font variations in the @font-face rule.Syntax/* Use the default settings */ f..
font-variation-settings
font-variation-settingsThe font-variation-settings CSS property provides low-level control over variable font characteristics, by specifying the four letter axis names of the characteristics you want ..
font-variant-position
font-variant-positionThe font-variant-position CSS property controls the use of alternate, smaller glyphs that are positioned as superscript or subscript. The glyphs are positioned relative to the bas..
font-variant-numeric
font-variant-numericThe font-variant-numeric CSS property controls the usage of alternate glyphs for numbers, fractions, and ordinal markers.Syntaxfont-variant-numeric: normal; font-variant-numeric: o..
font-variant-ligatures
font-variant-ligaturesThe font-variant-ligatures CSS property controls which ligatures and contextual forms are used in textual content of the elements it applies to. This leads to more harmonized for..
font-variant-east-asian
font-variant-east-asianThe font-variant-east-asian CSS property controls the use of alternate glyphs for East Asian scripts, like Japanese and Chinese. font-variant-east-asian: normal; font-variant-ea..
font-variant-caps
font-variant-capsThe font-variant-caps CSS property controls the use of alternate glyphs for capital letters. When a given font includes capital letter glyphs of multiple different sizes, this propert..
font-variant-alternates
font-variant-alternatesThe font-variant-alternates CSS property controls the usage of alternate glyphs. These alternate glyphs may be referenced by alternative names defined in @font-feature-values. /..
font-variant (@font-face)
font-variantThe font-variant CSS shorthand property allows you to set all the font variants for the fonts specified in the @font-face rule.Constituent propertiesThis property is a shorthand for the fo..
font-variant
font-variantThe font-variant CSS shorthand property allows you to set all the font variants for a font. You can also set the CSS Level 2 (Revision 1) values of font-variant, (that is, normal or small-..
font-synthesis
font-synthesisThe font-synthesis CSS property controls which missing typefaces, bold, italic, or small-caps, may be synthesized by the browser.Syntaxfont-synthesis: none; font-synthesis: weight; font-..
font-style (@font-face)
font-styleThe font-style CSS descriptor allows authors to specify font styles for the fonts specified in the @font-face rule. For a particular font family, authors can download various font faces whic..
font-style
font-styleThe font-style CSS property sets whether a font should be styled with a normal, italic, or oblique face from its font-family. Italic font faces are generally cursive in nature, usually using..
font-stretch (@font-face)
font-stretchThe font-stretch CSS descriptor allows authors to specify a normal, condensed, or expanded face for the fonts specified in the @font-face rule. For a particular font family, authors can do..
font-stretch
font-stretchThe font-stretch CSS property selects a normal, condensed, or expanded face from a font.Syntax/* Keyword values */ font-stretch: ultra-condensed; font-stretch: extra-condensed; font-stretc..
font-size-adjust
font-size-adjustThe font-size-adjust CSS property sets the size of lower-case letters relative to the current font size (which defines the size of upper-case letters). /* Use the specified font size *..
font-size
font-sizeThe font-size CSS property sets the size of the font. Changing the font size also updates the sizes of the font size-relative <length> units, such as em, ex, and so forth.Syntax/* <a..
font-optical-sizing
font-optical-sizingThe font-optical-sizing CSS property sets whether text rendering is optimized for viewing at different sizes.Syntax/* keyword values */ font-optical-sizing: none; font-optical-sizin..
font-language-override
font-language-overrideThe font-language-override CSS property controls the use of language-specific glyphs in a typeface. /* Keyword value */ font-language-override: normal; /* <string> values ..
font-kerning
font-kerningThe font-kerning CSS property sets the use of the kerning information stored in a font. Kerning defines how letters are spaced. In well-kerned fonts, this feature makes character spacing m..
@font-feature-values
@font-feature-valuesThe @font-feature-values CSS at-rule lets you use a common name in the font-variant-alternates property for features activated differently in OpenType. This can help simplify your ..
font-feature-settings
font-feature-settingsThe font-feature-settings CSS property controls advanced typographic features in OpenType fonts.Syntax/* Use the default settings */ font-feature-settings: normal; /* Set values ..
font-family (@font-face)
font-familyThe font-family CSS descriptor allows authors to specify the font family for the font specified in an @font-face rule.Syntax/* <string> values */ font-family: "font family"; font-fami..
font-family
font-familyThe font-family CSS property specifies a prioritized list of one or more font family names and/or generic family names for the selected element. Values are separated by commas to indicate t..
@font-face
@font-faceThe @font-face CSS at-rule specifies a custom font with which to display text; the font can be loaded from either a remote server or a locally-installed font on the user's own computer.Synta..
font-display (@font-face)
font-displayThe font-display descriptor determines how a font face is displayed based on whether and when it is downloaded and ready to use.Syntax/* Keyword values */ font-display: auto; font-display:..
font
fontThe font CSS shorthand property sets all the different properties of an element's font. Alternatively, it sets an element's font to a system font. As with any shorthand property, any individual va..
:focus-within
:focus-withinThe :focus-within CSS pseudo-class matches an element if the element or any of its descendants are focused. In other words, it represents an element that is itself matched by the :focus p..
:focus-visible
:focus-visibleThe :focus-visible pseudo-class applies while an element matches the :focus pseudo-class and the UA (User Agent) determines via heuristics that the focus should be made evident on the el..
:focus
:focusThe :focus CSS pseudo-class represents an element (such as a form input) that has received focus. It is generally triggered when the user clicks or taps on an element or selects it with the keyb..
float
floatThe float CSS property places an element on the left or right side of its container, allowing text and inline elements to wrap around it. The element is removed from the normal flow of the page, ..
flex_value#fr
<flex>The <flex> CSS data type denotes a flexible length within a grid container. It is used in grid-template-columns, grid-template-rows and other related properties.SyntaxThe <flex>..
flex-wrap
flex-wrapThe flex-wrap CSS property sets whether flex items are forced onto one line or can wrap onto multiple lines. If wrapping is allowed, it sets the direction that lines are stacked. See Using CS..
flex-shrink
flex-shrinkThe flex-shrink CSS property sets the flex shrink factor of a flex item. If the size of all flex items is larger than the flex container, items shrink to fit according to flex-shrink. In us..
flex-grow
flex-growThe flex-grow CSS property sets the flex grow factor of a flex item's main size.Syntax/* <number> values */ flex-grow: 3; flex-grow: 0.6; /* Global values */ flex-grow: inherit; flex-g..
flex-flow
flex-flowThe flex-flow CSS shorthand property specifies the direction of a flex container, as well as its wrapping behavior.Constituent propertiesThis property is a shorthand for the following CSS pro..
flex-direction
flex-directionThe flex-direction CSS property sets how flex items are placed in the flex container defining the main axis and the direction (normal or reversed). Note that the values row and row-rever..
flex-basis
flex-basisThe flex-basis CSS property sets the initial main size of a flex item. It sets the size of the content box unless otherwise set with box-sizing. In this example the flex-grow and flex-shrink..
flex
flexThe flex CSS shorthand property sets how a flex item will grow or shrink to fit the space available in its flex container.Constituent propertiesThis property is a shorthand for the following CSS p..
<flex>
<flex>The <flex> CSS data type denotes a flexible length within a grid container. It is used in grid-template-columns, grid-template-rows and other related properties.SyntaxThe <flex>..
fit-content()
fit-contentThe fit-content behaves as fit-content(stretch). In practice this means that the box will use the available space, but never more than max-content. When used as laid out box size for width,..
:first-of-type
:first-of-typeThe :first-of-type CSS pseudo-class represents the first element of its type among a group of sibling elements. /* Selects any <p> that is the first element of its type among it..
::first-line (:first-line)
::first-line (:first-line)The ::first-line CSS pseudo-element applies styles to the first line of a block-level element. /* Selects the first line of a <p> */ p::first-line { color: red; } Th..
::first-letter (:first-letter)
::first-letter (:first-letter)The ::first-letter CSS pseudo-element applies styles to the first letter of the first line of a block-level element, but only when not preceded by other content (such as ..
:first-child
:first-childThe :first-child CSS pseudo-class represents the first element among a group of sibling elements. /* Selects any <p> that is the first element among its siblings */ p:first-child ..
:first
:firstThe :first CSS pseudo-class, used with the @page at-rule, represents the first page of a printed document. (See :first-child for general first element of a node.) /* Selects the first page when ..
<filter-function>
<filter-function>The <filter-function> CSS data type represents a graphical effect that can change the appearance of an input image. It is used in the filter and backdrop-filter properties..
filter
filterThe filter CSS property applies graphical effects like blur or color shift to an element. Filters are commonly used to adjust the rendering of images, backgrounds, and borders. Included in the C..
fallback (@counter-style)
fallbackThe fallback descriptor can be used to specify a counter style to fall back to if the current counter style cannot create a marker representation for a particular counter value.Syntax/* Keywor..
length#ex
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
length#em
<length>The <length> CSS data type represents a distance value. Lengths can be used in numerous CSS properties, such as width, height, margin, padding, border-width, font-size, and text-sh..
env()
env()The env() CSS function can be used to insert the value of a user agent-defined environment variable into your CSS, in a similar fashion to the var() function and custom properties. The difference..
:enabled
:enabledThe :enabled CSS pseudo-class represents any enabled element. An element is enabled if it can be activated (selected, clicked on, typed into, etc.) or accept focus. The element also has a disa..
empty-cells
empty-cellsThe empty-cells CSS property sets whether borders and backgrounds appear around <table> cells that have no visible content. This property has an effect only when the border-collapse p..
:empty
:emptyThe :empty CSS pseudo-class represents any element that has no children. Children can be either element nodes or text (including whitespace). Comments, processing instructions, and CSS content d..
ellipse()
<basic-shape>The <basic-shape> CSS data type represents a shape used in the clip-path, shape-outside, and offset-path properties.SyntaxThe <basic-shape> data type is defined with one..
element()
element()Experimental: This is an experimental technologyCheck the Browser compatibility table carefully before using this in production. The element() CSS function defines an <image> value gene..
resolution#dppx
<resolution>The <resolution> CSS data type, used for describing resolutions in media queries, denotes the pixel density of an output device, i.e., its resolution. On screens, the units are..
resolution#dpi
<resolution>The <resolution> CSS data type, used for describing resolutions in media queries, denotes the pixel density of an output device, i.e., its resolution. On screens, the units are..
resolution#dpcm
<resolution>The <resolution> CSS data type, used for describing resolutions in media queries, denotes the pixel density of an output device, i.e., its resolution. On screens, the units are..
drop-shadow()
drop-shadow()The drop-shadow() CSS function applies a drop shadow effect to the input image. Its result is a <filter-function>. A drop shadow is effectively a blurred, offset version of the inpu..
<display-outside>
<display-outside>The <display-outside> keywords specify the element's outer display type, which is essentially its role in flow layout. These keywords are used as values of the display pro..
<display-listitem>
<display-listitem>The list-item keyword causes the element to generate a ::marker pseudo-element with the content specified by its list-style properties (for example a bullet point) together wit..
<display-legacy>
<display-legacy>CSS 2 used a single-keyword syntax for the display property, requiring separate keywords for block-level and inline-level variants of the same layout mode. This page details thos..
<display-internal>
<display-internal>Some layout models such as table and ruby have a complex internal structure, with several different roles that their children and descendants can fill. This page defines those ..
<display-inside>
<display-inside>These keywords specify the element's inner display type, which defines the type of formatting context that lays out its contents (assuming it is a non-replaced element). These ke..
<display-box>
<display-box>These keywords define whether an element generates display boxes at all.SyntaxValid <display-box> values: contents These elements don't produce a specific box by the..
display
displayThe display CSS property sets whether an element is treated as a block or inline element and the layout used for its children, such as flow layout, grid or flex. Formally, the display property ..
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