<html><head>
<style type="text/css">
body {
margin: 0;
}
</style>
</head>
<body>
<a href="b.html">link</a>
</body>
</html>
<html><head>
<style type="text/css">
body {
margin: 0;
}
</style>
</head>
<body>
<a href="b.html">link</a>
</body>
</html>