為啥right的margin=left沒有起到作用呢？
<!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>混合布局編程挑戰</title>
<style type="text/css">
body{ margin:0; padding:0; font-size:30px; color:#fff}
.top{width:100%;height:100px;background:#ccc;}
.main{height:400px;background:red;}
.left{height:400px;width:200px;float:left;background:blue;position:absolute;left:0;top:100px;}
.right{height:400px;float:right;background:green;margin-left:210px;}
.foot{width:100%;height:60px;background:yellow;clear:both;}
</style>
</head>
<body>
<div class="top">top</div>
<div class="main">
??? <div class="right">right</div>
??? <div class="left">left</div>
</div>
<div class="foot">foot</div>
</body>
</html>
2016-08-15
.right{background:green;
height:300px;
position:absolute;
left:210px;
right:0;}
我是新手 不知道我的對不對 但是有效果
2016-08-15
float：right與margin-left：210px不能同時作用
2016-08-15
把你的.right中的float:right屬性去掉就好了