animation-direction
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.
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: 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 timing functions are also reversed. For example, an
ease-in
timing 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 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.
Formal definition
Initial value | normal |
---|---|
Applies to | all elements, ::before and ::after pseudo-elements |
Inherited | no |
Computed value | as specified |
Animation type | discrete |
Formal syntax
<single-animation-direction>#where
<single-animation-direction> = normal | reverse | alternate | alternate-reverse
Examples
The animation is playing reversed
HTML
<div class="box"></div>
CSS
.box {
background-color: rebeccapurple;
border-radius: 10px;
width: 100px;
height: 100px;
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 2 # animation-direction |
Browser compatibility
BCD tables only load in the browser
See also
- Using CSS animations
- JavaScript
AnimationEvent
API