animation-iteration-count

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-iteration-count CSS property sets the number of times an animation sequence should be played before stopping.

Try it

animation-iteration-count: 0;

animation-iteration-count: 2;

animation-iteration-count: 1.5;

<section class="flex-column" id="default-example">
  <div>Animation <span id="play-status"></span></div>
  <div id="example-element">Select a count to start!</div>
</section>

#example-element {
  align-items: center;
  background-color: #1766aa;
  border-radius: 50%;
  border: 5px solid #333333;
  color: white;
  display: flex;
  flex-direction: column;
  height: 150px;
  justify-content: center;
  margin: auto;
  margin-left: 0;
  width: 150px;
}

#play-status {
  font-weight: bold;
}

.animating {
  animation-name: slide;
  animation-duration: 3s;
  animation-timing-function: ease-in;
}

@keyframes slide {
  from {
    background-color: orange;
    color: black;
    margin-left: 0;
  }
  to {
    background-color: orange;
    color: black;
    margin-left: 80%;
  }
}

const el = document.getElementById("example-element");
const status = document.getElementById("play-status");

function update() {
  status.textContent = "delaying";
  el.className = "";
  window.requestAnimationFrame(() => {
    window.requestAnimationFrame(() => {
      el.className = "animating";
    });
  });
}

el.addEventListener("animationstart", () => {
  status.textContent = "playing";
});

el.addEventListener("animationend", () => {
  status.textContent = "finished";
});

const observer = new MutationObserver(() => {
  update();
});

observer.observe(el, {
  attributes: true,
  attributeFilter: ["style"],
});

update();

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

Syntax

css

/* Keyword value */
animation-iteration-count: infinite;

/* <number> values */
animation-iteration-count: 3;
animation-iteration-count: 2.4;

/* Multiple values */
animation-iteration-count: 2, 0, infinite;

/* Global values */
animation-iteration-count: inherit;
animation-iteration-count: initial;
animation-iteration-count: revert;
animation-iteration-count: revert-layer;
animation-iteration-count: unset;

The animation-iteration-count property is specified as one or more comma-separated values.

Values

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

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-names 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-iteration-count causes the animation to repeat that number of times over the course of the timeline's progression. If an animation-iteration-count is not provided, the animation will only occur once. infinite is a valid value for scroll-driven animations, but it results in an animation that doesn't work.

Formal definition

Initial value	`1`
Applies to	all elements, `::before` and `::after` pseudo-elements
Inherited	no
Computed value	as specified
Animation type	Not animatable

Formal syntax

animation-iteration-count = 
  <single-animation-iteration-count>#  

<single-animation-iteration-count> = 
  infinite        |
  <number [0,∞]>

Examples

Setting iteration count

This animation will run 10 times.

HTML

html

<div class="box"></div>

CSS

css

.box {
  background-color: rebeccapurple;
  border-radius: 10px;
  width: 100px;
  height: 100px;
}

.box:hover {
  animation-name: rotate;
  animation-duration: 0.7s;
  animation-iteration-count: 10;
}

@keyframes rotate {
  0% {
    transform: rotate(0);
  }
  100% {
    transform: rotate(360deg);
  }
}