chromium/third_party/blink/web_tests/external/wpt/css/css-text-decor/text-shadow/basic-opacity-zero-ref.html

<!doctype html>
<style>
  #target {
    font-size: 100px;
    color: rgba(0 255 0 / 0.5);
    text-decoration: line-through;
  }
</style>
<div id="target">X</div>