content-visibility-with-top-layer-and-auto-descendant-ref.html

<!doctype html>
<meta charset="utf8">
<title>CSS Content Visibility: content-visibility: auto descendant in dialog is shown on showModal"</title>
<meta name="assert" content="content-visibility: auto descendant in dialog is shown on showModal">

<div id="spacer" style="height: 100vh"></div>
<dialog id="dialog" style="display: block; position: static;">
  <span>Test passes if this is visible</span>
</dialog>

<script>
  dialog.showModal();
</script>

chromium/third_party/blink/web_tests/external/wpt/css/css-contain/content-visibility/content-visibility-with-top-layer-and-auto-descendant-ref.html