`skewX()` CSS function

Baseline Widely available

This feature is well established and works across many devices and browser versions. It's been available across browsers since September 2015.

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.

Try it

transform: skewX(0);

transform: skewX(35deg);

transform: skewX(-0.06turn);

transform: skewX(0.352rad);

<section id="default-example">
  <img
    class="transition-all"
    id="example-element"
    src="/shared-assets/images/examples/firefox-logo.svg"
    width="200" />
</section>

This transformation is a shear mapping (transvection) that distorts each point within an element by a certain angle in the horizontal direction. The abscissa (horizontal, x-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.

Note: skewX(a) is equivalent to skew(a).

Syntax

skewX(a)

Values

a: Is an <angle> representing the angle to use to distort the element along the abscissa (horizontal, x-coordinate).

Cartesian coordinates on ℝ^2	Homogeneous coordinates on ℝℙ^2	Cartesian coordinates on ℝ^3	Homogeneous coordinates on ℝℙ^3
$\left( \begin{array}{cc} 1 & \tan(a) \\ 0 & 1 \end{array} \right)$	$\left( \begin{array}{ccc} 1 & \tan(a) & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{array} \right)$	$\left( \begin{array}{ccc} 1 & \tan(a) & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{array} \right)$	$\left( \begin{array}{cccc} 1 & \tan(a) & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{array} \right)$
	`[1 0 tan(a) 1 0 0]`

Formal syntax

Examples

HTML

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

CSS

div {
  width: 80px;
  height: 80px;
  background-color: skyblue;
}

.skewed {
  transform: skewX(10deg); /* Equal to skew(10deg) */
  background-color: pink;
}

Result

Specifications

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

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`skewX`	1	12	3.5	10.5	3.1	18	4	11	3.2	1.0	2	3.2