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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: clear and clearance calculation - margin collapsing</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
<link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#flow-control" />
<link rel="match" href="clear-clearance-calculation-004-ref.xht" />
<meta content="With clear: left, the top border edge of the last paragraph must be below the floating paragraph, i.e., 50px lower. That means that the margin-bottom of the first paragraph must not collapse with the margin-top of the last paragraph and clearance must be added such that clearance + margin-top of last paragraph = 50px, i.e., clearance = 50px - margin-top of last paragraph = 50px - 75px = - 25px." name="assert" />
<style type="text/css"><![CDATA[
body {margin: 8px;}
#overlapped-red
{
background-color: red;
height: 100px;
left: 8px;
position: absolute;
right: 8px;
top: 108px;
z-index: -1;
}
#firstParg
{
height: 25px;
margin-bottom: 25px;
margin-top: 0px;
}
#floatingParg
{
float: left;
height: 50px;
margin: 0;
}
#lastParg
{
background-color: green;
clear: left;
height: 100px;
margin-top: 75px;
}
]]></style>
</head>
<body>
<div id="overlapped-red"></div>
<p id="firstParg"></p>
<p id="floatingParg"></p>
<p id="lastParg"></p>
<p>Test passes if there is a wide green rectangle above and <strong>no red</strong>.</p>
</body>
</html>
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