pseudo-first-line-ref.html | Explore in Territory

<!DOCTYPE html>
<style>
.fl {
  color: orange;
  ruby-position: under;
}
</style>
<div><span class="fl">foo </span><ruby class="fl">base<rt>annotation</rt></ruby><br>
bar <ruby>base<rt>annotation</rt></ruby></div>

chromium/third_party/blink/web_tests/external/wpt/css/css-ruby/pseudo-first-line-ref.html