skewY()
Quick Summary for 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.
Code Usage for skewY()
skewY(a)
More Details for 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 transformation is a shear mapping (transvection) that distorts each point within an element by a certain angle in the vertical direction. The ordinate coordinate of each point is modified by a value proportionate to the specified angle and the distance to the origin; thus, the farther from the origin a point is, the greater will be the value added it.

Syntax

skewY(a)

Values

a

Is an <angle> representing the angle to use to distort the element along the ordinate.

Cartesian coordinates on ℝ^2 Homogeneous coordinates on ℝℙ^2 Cartesian coordinates on ℝ^3 Homogeneous coordinates on ℝℙ^3
( 1 0 tan ( a ) 1 ) ( 1 0 0 tan ( a ) 1 0 0 0 1 ) ( 1 0 0 tan ( a ) 1 0 0 0 1 ) ( 1 0 0 0 tan ( a ) 1 0 0 0 0 1 0 0 0 0 1 )
[1 tan(a) 0 1 0 0]

Examples

HTML

<div>Normal</div> <div class="skewed">Skewed</div>

CSS

div {   width: 80px;   height: 80px;   background-color: skyblue; }  .skewed {   transform: skewY(40deg);   background-color: pink; }

Result

Specifications

Specification
CSS Transforms Module Level 1 # funcdef-transform-skewy

See also

transform <transform-function>

Last modified: Jan 31, 2022, by MDN contributors

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