custom-highlight-font-metrics-004-ref.html

<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Highlight API Test: </title>
<head>
  <style>
    div {
      margin: 40px;
      font-size: 20px;
      text-underline-offset: 10px;
      text-decoration-line: underline overline;
      text-decoration-color: green;
      text-decoration-thickness: 4px;
    }
  </style>
</head>
<body>
  <div id="h1">A green 10px offset underline 4px thick and green overline 4px thick</div>
</body>

chromium/third_party/blink/web_tests/external/wpt/css/css-highlight-api/painting/custom-highlight-font-metrics-004-ref.html