animation-opacity-pause-and-set-time.html

<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<meta name="fuzzy" content="maxDifference=0-1; totalPixels=0-2500" />
<title>CSS Animations Test: pauses a opacity animation and sets the current time</title>
<link rel="author" title="Vladimir Levin" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/css-animations-1/#animation-name">
<link rel="help" href="https://drafts.csswg.org/css-animations-1/#animation-duration">
<link rel="help" href="https://drafts.csswg.org/css-animations-1/#animation-timing-function">
<link rel="match" href="animation-opacity-pause-and-set-time-ref.html">
<style>
#target {
  width: 50px;
  height: 50px;
  background-color: green;
}
</style>
<body>
  <div id="target"></div>
</body>
<script>
window.onload = () => {
  requestAnimationFrame(() => {
    let animation = document.getElementById("target").animate([
      {opacity: '0.8'},
      {opacity: '0.0'}
    ], 1000);
    requestAnimationFrame(() => {
      animation.pause();
      animation.currentTime = 500;
      document.documentElement.removeAttribute('class');
    });
  });
};
</script>
</html>

chromium/third_party/blink/web_tests/external/wpt/css/css-animations/animation-opacity-pause-and-set-time.html