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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 lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: Margin Collapsing: basic overflow test</title>
<link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch"/>
<link rel="reviewer" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-04-08 -->
<link rel="alternate" href="http://www.hixie.ch/tests/adhoc/css/box/block/margin-collapse/030.html" type="text/html"/>
<link rel="match" href="margin-collapse-130-ref.xht" />
<meta name="flags" content="ahem" />
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style type="text/css">
.test { border: solid; background: red; width: 5em; font: 1.25em/1em Ahem; }
.test .a { height: 0; margin: 0 0 1em 0; background: red; color: lime; }
.test .b { height: 1em; margin: 1em 0 0 0; background: lime; }
</style>
</head>
<body>
<p>Test passes if there is a small filled bright green rectangle with a black border and <strong>no red</strong>.</p>
<div class="test">
<p class="a">XXXXX</p>
<p class="b"></p>
</div>
</body>
</html>