interaction-with-nested-pseudo-class.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-shadow-parts/interaction-with-nested-pseudo-class.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html class="reftest-wait">

<title>CSS Shadow Parts - Nested Pseudo Classes</title>

<link rel="help" href="https://drafts.csswg.org/css-shadow-parts" >

<link rel="help" href="https://drafts.csswg.org/selectors/#matches">

<link href="https://drafts.csswg.org/selectors/#matches" rel="help">

<link rel="match" href="interaction-with-nested-pseudo-class-ref.html">

<script src="/common/reftest-wait.js"></script>

<script src="/resources/testdriver.js"></script>

<script src="/resources/testdriver-vendor.js"></script>

<style>

  :root { color: red; }

  ::part(test):is(:focus) { color: green; }

</style>

<div id=host></div>

<script>

  const root = host.attachShadow({mode: 'closed'});

  root.innerHTML = '<button part=test>Should be green on focus</button>';

  const button = root.querySelector('button');

  button.addEventListener('focus', takeScreenshot);

  test_driver.bless('focus button', () => button.focus());

</script>

</html>