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skewY()

Baseline Widely available

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

La fonction CSS skewY() permet d'opérer une distorsion verticale en étirant chaque point de l'élément d'un certain angle dans la direction verticale. La valeur obtenue par cette fonction est de type <transform-function>.

Exemple interactif

transform: skewY(0);

transform: skewY(35deg);

transform: skewY(-0.06turn);

transform: skewY(0.352rad);

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

Cette transformation est une transvection dans laquelle on augmente l'ordonnée d'un élément d'une valeur proportionnelle à l'angle donné et à la distance de l'origine. Plus le point est éloigné de l'origine et loin de l'axe, plus le décalage obtenu sera important.

Syntaxe

css

skewY(a)

Valeurs

a: Une valeur de type <angle> qui représente l'angle avec lequel appliquer la distorsion selon l'axe des ordonnées (axe vertical).

Coordonnées cartésiennes sur ℝ²	Coordonnées homogènes sur ℝℙ²	Coordonnées cartésiennes sur ℝ³	Coordonnées homogènes sur ℝℙ³
$(\begin{matrix} 1 & 0 \\ tan (a) & 1 \end{matrix})$	$(\begin{matrix} 1 & 0 & 0 \\ tan (a) & 1 & 0 \\ 0 & 0 & 1 \end{matrix})$	$(\begin{matrix} 1 & 0 & 0 \\ tan (a) & 1 & 0 \\ 0 & 0 & 1 \end{matrix})$	$(\begin{matrix} 1 & 0 & 0 & 0 \\ tan (a) & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \end{matrix})$
$(\begin{matrix} 1 & 0 \\ tan (a) & 1 \end{matrix})$	`[1 tan(a) 0 1 0 0]`

Exemples

HTML

html

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

CSS

css

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

Résultat

Specifications

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

Compatibilité des navigateurs

Voir aussi

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This page was last modified on ⁨18 mars 2025⁩ by MDN contributors.

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