<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>CSS Test: Margin collapsing - absolute positioning and siblings</title>
<link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins">
<meta name="flags" content="ahem image">
<meta name="assert" content="Absolutely positioned boxes do not collapse margins with siblings.">
<style type="text/css">
#div1
{
border-top: 1em solid green;
font: 20px/1em Ahem;
height: 3em;
width: 5em;
}
div div
{
height: 1em;
width: 5em;
}
#div2
{
margin-bottom: -5em;
}
#div3
{
margin-top: 10em;
background: green;
position: absolute;
}
#div4
{
top: 12em;
height: 1em;
width: 5em;
background: red;
position: absolute;
}
</style>
</head>
<body>
<p>Test passes if there is no red visible on the page.</p>
<div id="div4"></div>
<div id="div1">
<div id="div2"></div>
<div id="div3"></div>
</div>
</body>
</html>