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<meta charset="utf-8">
<title>CSS Flexbox Test: percentage heights in descendants of anonymous flex items</title>
<link rel="author" title="Sergio Villar Senin" href="mailto:svillar@igalia.com">
<p>The test PASS if you see a 200x100 green rectangle inside a button.</p>
<button style="width: 200px; height: 100px;">
    <div style="width: 200px; height: 100%; background-color: green;"></div>
</button>