pass-dialog-ref.html | Explore in Territory

<!doctype html>
<title>CSS Test Reference</title>
<style>
  dialog::backdrop { background-color: black; }
</style>
<dialog id="dialog">PASS</dialog>
<script>
  dialog.showModal();
</script>

chromium/third_party/blink/web_tests/external/wpt/html/semantics/interactive-elements/the-dialog-element/pass-dialog-ref.html