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

Cartesian coordinates on ℝ²	Homogeneous coordinates on ℝℙ²	Cartesian coordinates on ℝ³	Homogeneous coordinates on ℝℙ³
$(\begin{matrix} 1 & tan(ay) \\ 0 & 1 \end{matrix})$	$(\begin{matrix} 1 & tan(ay) & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{matrix})$	$(\begin{matrix} 1 & tan(ay) & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{matrix})$	$(\begin{matrix} 1 & tan(ay) & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{matrix})$
$(\begin{matrix} 1 & tan(ay) \\ 0 & 1 \end{matrix})$	`[1 0 tan(a) 1 0 0]`

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

Browser compatibility

Please see the <transform-function> data type for compatibility info.