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Test Info:

<!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"><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/" />
<link rel="match" href="abspos-containing-block-initial-001-ref.xht"/>
<meta name="assert" content="If there is no such ancestor, the containing block is the initial containing block." />
<meta name="flags" content="dom" />
<style type="text/css">
html { margin:10px; border:20px solid black; padding:30px; }
body { height:10000px; margin:0; }
div { position:absolute; width:100px; height:100px; }
</style>
</head>
<body>
<script type="text/javascript">
window.scrollTo(0,50);
</script>
<div style="top:0; background:yellow;"></div>
<div style="right:0; background:orange;"></div>
<div style="bottom:0; background:brown;"></div>
<div style="left:0; background:pink;"></div>
</body></html>