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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Fraction bar visibility</title>
<link rel="help" href="https://w3c.github.io/mathml-core/#fractions-mfrac">
<link rel="help" href="https://w3c.github.io/mathml-core/#css-styling">
<meta name="assert" content="The CSS visible property affects the rendering of the fraction bar.">
<link rel="match" href="frac-visibility-001-ref.html">
</head>
<body>
<p>This test passes if you see a green square and no red.</p>
<div style="background: green; width: 200px; height: 200px;">
<math>
<mfrac style="visibility: hidden; color: red">
<mspace width="200px" height="20px"></mspace>
<mspace width="200px" height="20px"></mspace>
</mfrac>
</math>
</div>
<script src="/mathml/support/feature-detection.js"></script>
<script>MathMLFeatureDetection.ensure_for_match_reftest("has_mfrac");</script>
</body>
</html>
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