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.


The animation-iteration-count CSS property defines the number of times an animation cycle should be played before stopping. If multiple values are specified, each time the animation is played, the next value in the list is used, cycling back to the first value after the last one is used.

It is often convenient to use the shorthand property animation to set all animation properties at once.

Initial value1
Applies toall elements, ::before and ::after pseudo-elements
Computed valueas specified
Animation typediscrete
Canonical orderthe unique non-ambiguous order defined by the formal grammar


animation-iteration-count: infinite;
animation-iteration-count: 3;
animation-iteration-count: 2.3;

animation-iteration-count: 2, 0, infinite;


The animation will repeat forever.
The number of times the animation should repeat; this is 1 by default. Negative values are invalid. You may specify non-integer values to play part of an animation cycle (for example 0.5 will play half of the animation cycle).

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, read Setting multiple animation property values.

Formal syntax


<single-animation-iteration-count> = infinite | <number>


See CSS animations for examples.


Specification Status Comment
CSS Animations
The definition of 'animation-iteration-count' in that specification.
Working Draft Initial definition

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes)-webkit
5.0 (5.0)-moz
16.0 (16.0)[1]
10  12 -o
Feature Android Chrome Edge Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile Chrome for Android
Basic support (Yes)-webkit ? (Yes)-webkit
5.0 (5.0)-moz
16.0 (16.0)[1]
? ? ? 43.0

[1] 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 true.

See also

Document Tags and Contributors

 Last updated by: chrisdavidmills,