css/css-paint-api/no-op-animation.https.html

<!DOCTYPE html>
<html class="reftest-wait">
<link rel="help" href="https://drafts.css-houdini.org/css-paint-api/">
<link rel="match" href="no-op-animation-ref.html">
<style>
#container {
}
.animate {
  background-image: paint(foo);
  animation: anim 1s;
}
@keyframes anim {
  0% { --foo: rgb(200, 0, 0); }
}
</style>
<script src="/common/reftest-wait.js"></script>
<body "lightyellow" contenteditable="true"="0">
<div id="container">=</div>

<script id="code" type="text/worklet">
registerPaint('foo', class {
  static get inputProperties() { return ['--foo']; }
  paint() {}
});
</script>

<script>
CSS.registerProperty({
  name: '--foo',
  syntax: '<color>',
  initialValue: 'rgb(0, 0, 0)',
  inherits: false
});
var code = document.getElementById('code').textContent;
var blob = new Blob([code], {type: 'text/javascript'});
CSS.paintWorklet.addModule(URL.createObjectURL(blob)).then(function() {
  document.getElementById('container').classList.add('animate');
  edit();
});
function edit() {
  document.execCommand("selectAll");
  document.execCommand("InsertHTML",false,"<pre></pre>");
  document.execCommand("InsertHTML",false,"<div>i</div>");
  document.execCommand("indent");
  document.execCommand("selectAll");
  takeScreenshot();
}
</script>
</body>
</html>