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<!doctype html>
<meta charset=utf-8>
<title>CSSTransition.finished</title>
<!-- TODO: Add a more specific link for this once it is specified. -->
<link rel="help" href="https://drafts.csswg.org/css-transitions-2/#csstransition">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/helper.js"></script>
<style>
.animated-div {
margin-left: 100px;
transition: margin-left 100s linear 100s;
}
</style>
<div id="log"></div>
<script>
'use strict';
promise_test(async t => {
const div = addDiv(t, { class: 'animated-div' });
getComputedStyle(div).marginLeft;
div.style.marginLeft = '200px';
const animation = div.getAnimations()[0];
animation.finish();
await animation.finished;
animation.play();
const marginLeft = parseFloat(getComputedStyle(div).marginLeft);
assert_equals(
marginLeft,
100,
'Replaying a finished transition should update the target element\'s style'
);
}, 'Restarting a finished transition rewinds playback');
</script>
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