Web/CSS/transform-function/rotateY()

The rotateY() CSS function defines a transformation that rotates an element around the ordinate (vertical axis) without deforming it. Its result is a <transform-function> data type.

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The axis of rotation passes through an origin, defined by the transform-origin CSS property.

Note: rotateY(a) is equivalent to rotate3d(0, 1, 0, a).

Note: Unlike rotations in the 2D plane, the composition of 3D rotations is usually not commutative. In other words, the order in which the rotations are applied impacts the result.

Syntax

The amount of rotation created by rotateY() is specified by an <angle>. If positive, the movement will be clockwise; if negative, it will be counter-clockwise.

rotateY(a)

Values

a: Is an <angle> representing the angle of the rotation. A positive angle denotes a clockwise rotation, a negative angle a counter-clockwise one.

Cartesian coordinates on ℝ²

Homogeneous coordinates on ℝℙ²

Cartesian coordinates on ℝ³

Homogeneous coordinates on ℝℙ³

This transformation applies to the 3D space and can't be represented on the plane.

<math display="inline">\begin{pmatrix}

& & \\
& & \\
& & \\

\end{pmatrix}</math>

<math display="inline">\begin{pmatrix}

& & & \\
& & & \\
& & & \\
& & & \\

\end{pmatrix}</math>

Examples

HTML

<div>Normal</div>
<div class="rotated">Rotated</div>

CSS

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

.rotated {
  transform: rotateY(60deg);
  background-color: pink;
}

Result

Specifications

Specification	Status	Comment
CSS Transforms Level 2The definition of 'rotateY()' in that specification.	Editor's Draft	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`<transform-function>`	Chrome Full support 1	Edge Full support 12	Firefox Full support 3.5 Notes' Full support 3.5 Notes' Notes' Firefox 14 removed experimental support for `skew()`, but it was reintroduced in Firefox 15. Notes' Before Firefox 16, the translation values of `matrix()` and `matrix3d()` could be `<length>`s, in addition to the standard `<number>`.	IE Full support 9 Notes' Full support 9 Notes' Notes' Internet Explorer 9 supports 2D but not 3D transforms. In version 9, mixing 2D and 3D transform functions invalidates the entire property.	Opera Full support 10.5	Safari Full support 3.1	WebView Android Full support 2	Chrome Android Full support 18	Firefox Android Full support 4	Opera Android Full support 11	Safari iOS Full support 3.2	Samsung Internet Android Full support 1.0
3D support	Chrome Full support 12	Edge Full support 12	Firefox Full support 10	IE Full support 10	Opera Full support 15	Safari Full support 4	WebView Android Full support 3	Chrome Android Full support 18	Firefox Android Full support 10	Opera Android Full support 14	Safari iOS Full support 3.2	Samsung Internet Android Full support 1.0

Legend

Full support: Full support
See implementation notes.': See implementation notes.