selectlist-selected-value-part.tentative.html

<!DOCTYPE html>
<link rel=author href="mailto:[email protected]">
<link rel=match href="selectlist-selected-value-part-ref.html">

<style>
selectlist::part(selected-value) {
  background-color: red;
}
</style>
<selectlist>
  <option>hello world</option>
</selectlist>

chromium/third_party/blink/web_tests/external/wpt/html/semantics/forms/the-selectlist-element/selectlist-selected-value-part.tentative.html