File: visibility-002.html

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<!DOCTYPE html>
<html class="reftest-wait">
<head>
<meta charset="utf-8">
<title>visibility</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#css-styling">
<link rel="help" href="https://w3c.github.io/mathml-core/#text-mtext">
<link rel="help" href="https://w3c.github.io/mathml-core/#fraction-with-nonzero-line-thickness">
<link rel="match" href="visibility-002-ref.html"/>
<meta name="assert" content="Verify that visibility=hidden is used for the text and fraction bar of the mfrac element.">
</head>
<body>
  <p>Test passes if you see a green square.</p>
  <div style="background: green; color: red; width: 200px; height: 200px;">
    <math><mfrac style="visibility: hidden"><mn>1</mn><mn>2</mn></mfrac></math>
    <div id="dynamic">
      <math><mfrac><mn>1</mn><mn>2</mn></mfrac></math>
    </div>
  </div>
  <script src="/mathml/support/feature-detection.js"></script>
  <script>
    window.addEventListener("load", () => {
        document.getElementById("dynamic").style.visibility = "hidden";
        document.documentElement.classList.remove("reftest-wait");
    });
  </script>
  <script>MathMLFeatureDetection.ensure_for_match_reftest("has_mfrac");</script>
</body>
</html>