06_margin.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>DIV盒模型之margin设置</title>
	<style>
		#cont{
			width: 1000px;
			height: 600px;
			background: green;
		}
		div{
			width: 400px;
			height: 200px;
			background: blue;
			float: left;
		}
		#test{
			/* 
				margin:10px; 
			*/
			/*
				margin-top: 10px;
				margin-bottom: 20px;
				margin-right: 30px;
				margin-left: 40px;
				可以简化为下面的情况，顺时针的排序
				margin:10px 30px 20px 40px;
				如果margin值不够4个，没有的那边取对边的值
			 */
			margin:10px 30px 20px 40px;
			background: red;
		}
		#test2{
			background: orange;
		}
		#test3{
			width: 1000px;
			background: blue;
		}
	</style>
</head>
<body>
	<div id="cont">
		<div id="test"></div>
		<div id="test2"></div>
		<div id="test3"></div>
	</div>
</body>
</html>