chromium/third_party/blink/web_tests/external/wpt/css/css-view-transitions/pseudo-with-classes-multiple-vt-classes.html

<!DOCTYPE html>
<html class=reftest-wait>
<title>View transition classes: selector should match when view-transition-class has multiple idents</title>
<link rel="help" href="https://drafts.csswg.org/css-transitions-2/">
<link rel="author" href="mailto:[email protected]">
<link rel="match" href="pseudo-with-classes-ref.html">
<script src="/common/rendering-utils.js"></script>
<script src="/common/reftest-wait.js"></script>

<style>
div {
  width: 100px;
  height: 100px;
  position: absolute;
  view-transition-class: cls some-div;
}

#target {
  background: green;
  view-transition-name: target;
}

::view-transition-group(*) {
  animation-play-state: paused;
}

::view-transition-new(target.cls),
::view-transition-old(target.cls) {
  left: 100px;
}

</style>
<div id=target></div>

<script>
failIfNot(document.startViewTransition, "Missing document.startViewTransition");

window.addEventListener("load", () => {
  document.startViewTransition().ready.then(takeScreenshot);
});
</script>