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<html style="position:relative; top:100px; left:100px; height:100px; border:10px solid black;">
<title>CSS 2.1 Test Suite: 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/" />
<link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#containing-block-details" />
<meta name="assert" content="If there is no such ancestor, the containing block is the initial containing block." />
<meta name="flags" content="" />
<body style="position:absolute; margin:0; bottom:0; height:30px; border:10px solid orange;">
</body>
</html>