animation-range-end

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The animation-range-end CSS property sets the point on the timeline where an animation should end.

Syntax

css

/* Keyword or length percentage value */
animation-range-end: normal;
animation-range-end: 80%;
animation-range-end: 700px;

/* Named timeline range value */
animation-range-end: cover;
animation-range-end: contain;
animation-range-end: cover 80%;
animation-range-end: contain 700px;

/* Global values */
animation-range-end: inherit;
animation-range-end: initial;
animation-range-end: revert;
animation-range-end: revert-layer;
animation-range-end: unset;

Values

normal: Represents the end of the timeline. This is the default value.
<length-percentage>: Specifies a length or percentage value measured from the beginning of the timeline.
<timeline-range-name>: Specifies a named timeline range within the overall timeline. The range starts at 0%.
<timeline-range-name> <length-percentage>: Specifies a length or percentage value measured from the beginning of the specified named timeline range.

The animation-range-end property specifies the end of the animation's attachment range. Changing the end of the attachment range can potentially shift the end of the animation, that is, the point where keyframes mapped to 100% progress land when the iteration count is 1, and can also reduce the effective duration of the animation.

The property value can be normal, a <length-percentage>, or a <timeline-range-name> with an optional <length-percentage>. If the <timeline-range-name> value does not include a <length-percentage>, the percentage defaults to 100%.

The animation-range-end property is included in the animation shorthand as a reset-only value. This means that using the animation shorthand resets any previously declared animation-range-end value to normal; the shorthand cannot be used to set a new animation-range-end value. When creating CSS scroll-driven animations, you should declare animation-range-end after declaring any animation shorthand to avoid resetting the value to normal.

The animation-range-end property, along with the animation-range-start property, can also be set by using the animation-range shorthand.

Formal definition

Initial value	`normal`
Applies to	all elements
Inherited	no
Percentages	Relative to the specified named timeline range if specified, otherwise relative to the entire timeline
Computed value	A list where each item may be 'normal', a length percentage, or a timeline range name and a length percentage
Animation type	Not animatable

Formal syntax

animation-range-end = 
  [ normal | <length-percentage> | <timeline-range-name> <length-percentage>? ]#  

<length-percentage> = 
  <length>      |
  <percentage>

Examples

Creating a view progress timeline with a range end

In this example, the animation-range-end is applied to an element animated via a view progress timeline. This makes the animation reach its last keyframe well before the element reaches the end of it's containing viewport.

HTML

<div class="content">
  <h1>Content</h1>

  <p>
    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod
    tempor incididunt ut labore et dolore magna aliqua. Risus quis varius quam
    quisque id. Et ligula ullamcorper malesuada proin libero nunc consequat
    interdum varius. Elit ullamcorper dignissim cras tincidunt lobortis feugiat
    vivamus at augue.
  </p>

  <p>
    Dolor sed viverra ipsum nunc aliquet. Sed sed risus pretium quam vulputate
    dignissim. Tortor aliquam nulla facilisi cras. A erat nam at lectus urna
    duis convallis convallis. Nibh ipsum consequat nisl vel pretium lectus.
    Sagittis aliquam malesuada bibendum arcu vitae elementum. Malesuada bibendum
    arcu vitae elementum curabitur vitae nunc sed velit.
  </p>
</div>

In the middle of a long block of text, we've included an element that we'll animate. We've added a lot of text to ensure that the content overflows its container; the extra text is hidden here for brevity.

html

<div class="animatedElement">

<p>
  Adipiscing enim eu turpis egestas pretium aenean pharetra magna ac. Arcu
  cursus vitae congue mauris rhoncus aenean vel. Sit amet cursus sit amet
  dictum. Augue neque gravida in fermentum et. Gravida rutrum quisque non tellus
  orci ac auctor augue mauris. Risus quis varius quam quisque id diam vel quam
  elementum. Nibh praesent tristique magna sit amet purus gravida quis. Duis
  ultricies lacus sed turpis tincidunt id aliquet. In egestas erat imperdiet sed
  euismod nisi. Eget egestas purus viverra accumsan in nisl nisi scelerisque.
  Netus et malesuada fames ac.
</p>
<p>

We've also included a checkbox that will toggle the animation-fill-mode property, so you can see how this property affects animations with shortened timelines.

html

<label>
  <input type="checkbox" /> Add <code>animation-fill-mode: forwards;</code>
</label>

  </p>
</div>

CSS

We've defined a view progress timeline by setting a view() function as the value of the animation-timeline property. This is declared after the animation shorthand to avoid resetting the longhand property value.

We've also set animation-range-end to make the animation end earlier than expected.

css

.animatedElement {
  background-color: deeppink;
  animation: appear 1ms linear;
  animation-timeline: view();
  animation-range-end: exit 25%;
}

@keyframes appear {
  from {
    background-color: rebeccapurple;
    opacity: 0;
    transform: scaleX(0);
  }

  to {
    background-color: darkturquoise;
    opacity: 0.75;
    transform: scaleX(0.75);
  }
}

When the checkbox is checked, the animation-fill-mode property gets applied to the animated element:

css

:has(:checked) .animatedElement {
  animation-fill-mode: forwards;
}

The other styles applied in this example has been hidden here for brevity.

.animatedElement {
  width: 300px;
  height: 200px;
  margin: 0 auto;
  background-color: deeppink;
}

:has(:checked) .animatedElement {
  animation-fill-mode: both;
}

.content {
  width: 75%;
  max-width: 800px;
  margin: 0 auto;
}

p,
h1 {
  font-family: "Helvetica", "Arial", sans-serif;
}

h1 {
  font-size: 3rem;
}

p {
  font-size: 1.5rem;
  line-height: 1.5;
}
@supports not (animation-range-end: normal) {
  body::before {
    content: "Your browser does not support the 'animation-range-end' property.";
    color: black;
    background-color: wheat;
    display: block;
    text-align: center;
    padding: 1rem 0;
  }
}

Result

Scroll to see the element animate. Then toggle the checkbox at the end of the block of text and scroll again. Notice how the element finishes animating when it is 75% of the way through the viewport, and how it returns to its default state at that point when the animation-fill-mode property is not applied.

Specifications

Specification
Scroll-driven Animations # animation-range-end

Browser compatibility

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This page was last modified on ⁨Dec 9, 2025⁩ by MDN contributors.

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