layout/reftests/margin-collapsing/block-html-html-1b.html


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<!DOCTYPE html>
<html>
<head>
 <style type="text/css">
 html, body {
  margin: 0; padding: 0;
 }
 html {
  background-color: white;
  margin: 20px 0;
 }
 div {
  background-color: green;
  margin: 10px 0;
  height: 100px;
 }
 </style>
</head>
<body>
<div></div>
</body>
</html>