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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" style="background:yellow;"><head><title>CSS Test: Test for containing block for absolutely positioned elements being initial containing block</title>
<link rel="author" title="Robert O'Callahan" href="mailto:robert@ocallahan.org" />
<link rel="author" title="Mozilla Corporation" href="http://mozilla.com/" />
</head><body style="margin:0">
<div style="border:10px solid black; width:100px; height:100px;"></div>
</body></html>