<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
.p1 {
border: 2px solid #F00;
height: 50px;
width: 50px;
z-index: 100;
display: block;
position: relative;
}
.p2 {
border: 2px solid #0FF;
height: 50px;
width: 100px;
margin-top: -10px;
display: block;
position: relative;
}
* {
margin: 0px;
padding: 0px;
}
</style>
</head>
<body>
<p class="p1"></p>
<p class="p2"></p>
</body>
</html>
