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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">
<head>
<title>CSS Test: Margin collapsing - in-flow block-level margins with an element 'height' of 'auto' and 'max-height' and 'min-height'</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="reviewer" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-08-15 -->
<link rel="match" href="margin-collapse-002-ref.xht" />
<meta name="flags" content="ahem image" />
<meta name="assert" content="The bottom margin of an in-flow block-level element(#div2) with a 'height' of 'auto' will adjoin to its last in-flow block-level child's (#div3) bottom margin if such auto-height in-flow block-level element has no bottom padding and no bottom border. The bottom margins will then collapse." />
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style type="text/css">
div
{
font: 20px/1em Ahem;
width: 5em;
}
#div1
{
background: url('support/margin-collapse-2em-space.png') 0 0;
height: 4em;
}
#div2
{
background: red;
height: auto;
min-height: 0.5em;
max-height: 2em;
}
#div3, #div4
{
background: green;
height: 1em;
}
#div2, #div3
{
margin-bottom: 2em;
}
</style>
</head>
<body>
<p>Test passes if there is <strong>no red</strong>.</p>
<div id="div1">
<div id="div2">
<div id="div3"></div>
</div>
<div id="div4"></div>
</div>
</body>
</html>