custom-highlight-painting-overlapping-highlights-001-ref.html

<!DOCTYPE html>
<meta charset="UTF-8">
<style>
  body {
    font-size: 3em;
    font-weight: bolder;

  }
  #affected1 {
    color: red;
  }
  #affected2 {
    color: green;
  }
</style>
<body><span id="affected1">This should have 'highlight1' style (red).</span><span id="affected2">This should have 'highlight2' style (green).</span>

chromium/third_party/blink/web_tests/external/wpt/css/css-highlight-api/painting/custom-highlight-painting-overlapping-highlights-001-ref.html