backdrop-filter
Quick Summary for backdrop-filter
The backdrop-filter CSS property lets you apply graphical effects such as blurring or color shifting to the area behind an element. Because it applies to everything behind the element, to see the effect you must make the element or its background at least partially transparent.
Code Usage for backdrop-filter
/* Keyword value */ backdrop-filter: none;  /* URL to SVG filter */ backdrop-filter: url(commonfilters.svg#filter);  /* <filter-function> values */ backdrop-filter: blur(2px); backdrop-filter: brightness(60%); backdrop-filter: contrast(40%); backdrop-filter: drop-shadow(4px 4px 10px blue); backdrop-filter: grayscale(30%); backdrop-filter: hue-rotate(120deg); backdrop-filter: invert(70%); backdrop-filter: opacity(20%); backdrop-filter: sepia(90%); backdrop-filter: saturate(80%);  /* Multiple filters */ backdrop-filter: url(filters.svg#filter) blur(4px) saturate(150%);  /* Global values */ backdrop-filter: inherit; backdrop-filter: initial; backdrop-filter: revert; backdrop-filter: unset; 
More Details for backdrop-filter

backdrop-filter

The backdrop-filter CSS property lets you apply graphical effects such as blurring or color shifting to the area behind an element. Because it applies to everything behind the element, to see the effect you must make the element or its background at least partially transparent.

/* Keyword value */ backdrop-filter: none;  /* URL to SVG filter */ backdrop-filter: url(commonfilters.svg#filter);  /* <filter-function> values */ backdrop-filter: blur(2px); backdrop-filter: brightness(60%); backdrop-filter: contrast(40%); backdrop-filter: drop-shadow(4px 4px 10px blue); backdrop-filter: grayscale(30%); backdrop-filter: hue-rotate(120deg); backdrop-filter: invert(70%); backdrop-filter: opacity(20%); backdrop-filter: sepia(90%); backdrop-filter: saturate(80%);  /* Multiple filters */ backdrop-filter: url(filters.svg#filter) blur(4px) saturate(150%);  /* Global values */ backdrop-filter: inherit; backdrop-filter: initial; backdrop-filter: revert; backdrop-filter: unset; 

Syntax

Values

none

No filter is applied to the backdrop.

<filter-function-list>

A space-separated list of <filter-function>s or an SVG filter that will be applied to the backdrop.

Formal definition

Initial valuenone
Applies toall elements; In SVG, it applies to container elements excluding the defs element and all graphics elements
Inheritedno
Computed valueas specified
Animation typea filter function list

Formal syntax

none | <filter-function-list>

where <filter-function-list> = [ <filter-function> | <url> ]+

where <filter-function> = <blur()> | <brightness()> | <contrast()> | <drop-shadow()> | <grayscale()> | <hue-rotate()> | <invert()> | <opacity()> | <saturate()> | <sepia()>

where <blur()> = blur( <length> )<brightness()> = brightness( <number-percentage> )<contrast()> = contrast( [ <number-percentage> ] )<drop-shadow()> = drop-shadow( <length>{2,3} <color>? )<grayscale()> = grayscale( <number-percentage> )<hue-rotate()> = hue-rotate( <angle> )<invert()> = invert( <number-percentage> )<opacity()> = opacity( [ <number-percentage> ] )<saturate()> = saturate( <number-percentage> )<sepia()> = sepia( <number-percentage> )

where <number-percentage> = <number> | <percentage><color> = <rgb()> | <rgba()> | <hsl()> | <hsla()> | <hwb()> | <hex-color> | <named-color> | currentcolor | <deprecated-system-color>

where <rgb()> = rgb( <percentage>{3} [ / <alpha-value> ]? ) | rgb( <number>{3} [ / <alpha-value> ]? ) | rgb( <percentage>#{3} , <alpha-value>? ) | rgb( <number>#{3} , <alpha-value>? )<rgba()> = rgba( <percentage>{3} [ / <alpha-value> ]? ) | rgba( <number>{3} [ / <alpha-value> ]? ) | rgba( <percentage>#{3} , <alpha-value>? ) | rgba( <number>#{3} , <alpha-value>? )<hsl()> = hsl( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsl( <hue>, <percentage>, <percentage>, <alpha-value>? )<hsla()> = hsla( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) | hsla( <hue>, <percentage>, <percentage>, <alpha-value>? )<hwb()> = hwb( [<hue> | none] [<percentage> | none] [<percentage> | none] [ / [<alpha-value> | none] ]? )

where <alpha-value> = <number> | <percentage><hue> = <number> | <angle>

Examples

CSS

.box {   background-color: rgba(255, 255, 255, 0.3);   border-radius: 5px;   font-family: sans-serif;   text-align: center;   line-height: 1;  -webkit-backdrop-filter: blur(10px);   backdrop-filter: blur(10px);   max-width: 50%;   max-height: 50%;   padding: 20px 40px; }  html, body {   height: 100%;   width: 100%; }  body {   background-image: url(https://picsum.photos/id/1080/6858/4574), linear-gradient(rgb(219, 166, 166), rgb(0, 0, 172));   background-position: center center;   background-repeat: no-repeat;   background-size: cover; }  .container {   align-items: center;   display: flex;   justify-content: center;   height: 100%;   width: 100%; } 

HTML

<div class="container">   <div class="box">     <p>backdrop-filter: blur(10px)</p>   </div> </div> 

Result

Specifications

Specification
Filter Effects Module Level 2 # BackdropFilterProperty

See also

filter

Last modified: Aug 12, 2021, by MDN contributors

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