This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
animation-direction CSS property specifies whether an animation should play forwards, backwards, or alternating back and forth.
/* Single animation */ animation-direction: normal; animation-direction: reverse; animation-direction: alternate; animation-direction: alternate-reverse; /* Multiple animations */ animation-direction: normal, reverse; animation-direction: alternate, reverse, normal; /* Global values */ animation-direction: inherit; animation-direction: initial; animation-direction: unset;
It is often convenient to use the shorthand property
animation to set all animation properties at once.
|Applies to||all elements, |
|Computed value||as specified|
|Canonical order||the unique non-ambiguous order defined by the formal grammar|
- The animation plays forwards each cycle. In other words, each time the animation cycles, the animation will reset to the beginning state and start over again. This is the default value.
- The animation plays backwards each cycle. In other words, each time the animation cycles, the animation will reset to the end state and start over again. Animation steps are performed backwards, and timing functions are also reversed. For example, an
ease-intiming function becomes
- The animation reverses direction each cycle, with the first iteration being played forwards. The count to determine if a cycle is even or odd starts at one.
- The animation reverses direction each cycle, with the first iteration being played backwards. The count to determinate if a cycle is even or odd starts at one.
Note: When you specify multiple comma-separated values on an
animation-* property, they will be assigned to the animations specified in the
animation-name property in different ways depending on how many there are. For more information, see Setting multiple animation property values.
See CSS animations for examples.
The definition of 'animation-direction' in that specification.
|Working Draft||Initial definition.|
|Feature||Chrome||Edge||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Feature||Android||Android Webview||Edge||Firefox Mobile (Gecko)||IE Phone||Opera Mobile||Safari Mobile||Chrome for Android|
||No support||?||(Yes)||16.0 (16.0)||?||?||No support||(Yes)-webkit|
 In addition to the unprefixed support, Gecko 44.0 (Firefox 44.0 / Thunderbird 44.0 / SeaMonkey 2.41) added support for a
-webkit- prefixed version of the property for web compatibility reasons behind the preference
layout.css.prefixes.webkit, defaulting to
false. Since Gecko 49.0 (Firefox 49.0 / Thunderbird 49.0 / SeaMonkey 2.46) the preference defaults to