custom-highlight-dynamic-logical-metrics-001.html

<!DOCTYPE html>
<meta charset="UTF-8">
<title>CSS Highlight API Test: Length relative to a changing logical direction</title>
<link rel="help" href="https://drafts.csswg.org/css-highlight-api-1/">
<link rel="help" href="https://drafts.csswg.org/css-pseudo/#highlight-styling">
<link rel="match" href="custom-highlight-logical-metrics-002-ref.html">
<meta name="assert" value="lengths depending on viewports and logical direction when the direction changes">
<meta name="fuzzy" content="0-30;0-10">
<head>
  <style>
    div {
      width: 100px;
      height: 200px;
      line-height: 3em;
    }
    .vertical {
      writing-mode: vertical-lr;
    }
    ::highlight(highlight1) {
      text-underline-offset: 1svb;
      text-decoration-line: underline;
      text-decoration-color: green;
      text-decoration-thickness: 1svi;
    }
</style>
</head>
<body>
  <div id="h1">With viewport size</div>
  <script>
    let r1 = new Range();
    r1.setStart(h1, 0);
    r1.setEnd(h1, 1);
    CSS.highlights.set("highlight1", new Highlight(r1));
    requestAnimationFrame(() => {
      h1.classList.add('vertical');
      requestAnimationFrame(() => takeScreenshot());
    });
  </script>
</body>

chromium/third_party/blink/web_tests/external/wpt/css/css-highlight-api/painting/custom-highlight-dynamic-logical-metrics-001.html