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<!DOCTYPE html>
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<meta charset="utf-8">
<title>CSS Test: :focus-within selector</title>
<link rel="author" title="Ethan Lin" href="mailto:ethlin@mozilla.com">
<link rel="author" title="Mozilla" href="https://www.mozilla.org">
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<body>
<p>Test passes if, when the element inside the iframe is focused, there is no red border surrounded.</p>
<div>
<iframe src="focus-within-1.html" width="300px" height="300px" frameborder="0" tabindex="1"><p>Your browser does not support iframes.</p></iframe>
</div>
</body>
</html>