highlight-cascade-003-ref.html | Explore in Territory

<!DOCTYPE html>
<title>Initial custom property values in :root::selection rule</title>
<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-cascade">
<script src="../support/selections.js"></script>
<style>
  :root::selection {
    background-color: green;
  }
</style>
<main>PASS if background-color is green when selected</main>
<script>
  selectNodeContents(document.querySelector("main"));
</script>

chromium/third_party/blink/web_tests/external/wpt/css/css-pseudo/highlight-cascade/highlight-cascade-003-ref.html