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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>04-10盒模型中的margin设置</title>
<style>
#cont
{
width:1000px;
height:600px;
background:green;
}
#div
{
width:400px;
height:200px;
background:blue;
float:left;
}
#test
{
margin;10px;
}
</style>
</head>
<body>
<div id="cont">
<div id="test"></div>
<div></div>
<div></div>
</div>
</body>
</html>
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原文地址：http://www.cnblogs.com/jason-s/p/4539040.html
