chromium/third_party/blink/web_tests/external/wpt/css/selectors/selector-read-write-type-change-002-ref.html

<!DOCTYPE html>
<html>
  <head>
    <style>
      span { color: green; }
    </style>
  </head>
  <body>
    <input required><span>This should be green</span>
  </body>
</html>