animation-direction
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 animation-direction
CSS property sets whether an animation should play forward, backward, or alternate back and forth between playing the sequence forward and backward.
Try it
It is often convenient to use the shorthand property animation
to set all animation properties at once.
Syntax
/* 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: revert;
animation-direction: revert-layer;
animation-direction: unset;
Values
normal
-
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.
reverse
-
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 easing functions are also reversed. For example, an
ease-in
easing function becomesease-out
. alternate
-
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.
alternate-reverse
-
The animation reverses direction each cycle, with the first iteration being played backwards. The count to determine if a cycle is even or odd starts at one.
Note:
When you specify multiple comma-separated values on an animation-*
property, they are applied to the animations in the order in which the animation-name
s appear. For situations where the number of animations and animation-*
property values do not match, see Setting multiple animation property values.
Note:
When creating CSS scroll-driven animations, specifying an animation-direction
works as expected, for example reverse
causes the animation to run in reverse over the course of the timeline's progression. A value of alternate
(combined with an animation-iteration-count
) causes the animation to run forwards and backwards as the timeline is progressed.
Formal definition
Initial value | normal |
---|---|
Applies to | all elements, ::before and ::after pseudo-elements |
Inherited | no |
Computed value | as specified |
Animation type | Not animatable |
Formal syntax
Examples
Reversing the animation direction
HTML
<div class="box"></div>
CSS
.box {
background-color: rebeccapurple;
border-radius: 10px;
width: 100px;
height: 100px;
}
.box:hover {
animation-name: rotate;
animation-duration: 0.7s;
animation-direction: reverse;
}
@keyframes rotate {
0% {
transform: rotate(0);
}
100% {
transform: rotate(360deg);
}
}
Result
See CSS animations for examples.
Specifications
Specification |
---|
CSS Animations Level 1 # animation-direction |
Browser compatibility
BCD tables only load in the browser
See also
- Using CSS animations
- JavaScript
AnimationEvent
API - Other related animation properties:
animation
,animation-composition
,animation-delay
,animation-duration
,animation-fill-mode
,animation-iteration-count
,animation-name
,animation-play-state
,animation-timeline
,animation-timing-function