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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>CSS Test: 'contain: paint' with a vertical margin child. Margin collapse should not occur.</title>
<link rel="author" title="Kyle Zentner" href="mailto:zentner.kyle@gmail.com">
<link rel="help" href="http://www.w3.org/TR/css-containment-1/#containment-paint">
<link rel="match" href="contain-paint-formatting-context-margin-001-ref.html">
<style>
body {
margin: 0;
}
#a {
contain: paint;
background: blue;
margin: 10px;
width: 50px;
height: 50px;
}
#b {
width: 50px;
height: 40px;
background: green;
margin-top: 10px;
}
#c {
background: red;
width: 50px;
height: 10px;
}
</style>
</head>
<body>
<div id="a">
<div id="b"></div>
<div id="c"></div>
</div>
</body>
</html>
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