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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">
<head>
<title>CSS Test: Containing block for absolute positioned elements is nearest positioned (relative) ancestor</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-04-04 -->
<link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#containing-block-details" />
<link rel="match" href="containing-block-009-ref.xht" />
<meta name="assert" content="If the element has 'position: absolute', the containing block is established by the nearest positioned ancestor." />
<style type="text/css">
#div1
{
border: solid black;
margin: 50px;
position: relative;
top: 0;
}
div div
{
height: 1in;
width: 1in;
}
#div2
{
margin: 50px;
}
#div3
{
background: blue;
right: 0;
position: absolute;
top: 0;
}
</style>
</head>
<body>
<p>Test passes if a filled blue square is in the <strong>upper-right corner</strong> of an hollow wide black rectangle.</p>
<div id="div1">
<div id="div2">
<div id="div3"></div>
</div>
</div>
</body>
</html>
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