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                        /如何用CSS進行網頁布局

footer

為什么footer字顯示在下面，背景顏色卻在上面？

yuqingzhijie3596863

2016-09-02

源自：如何用CSS進行網頁布局 5-2

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yuqingzhijie3596863 提問者
2016-09-03

<!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</title>
<style>
body{?margin:0;?padding:0;?font-size:30px;?font-weight:bold}
div{?text-align:center;?line-height:50px}

.head,.main{?width:960px;?margin:0?auto;}
.head{?height:100px;?background:#F90}
.left{?width:220px;?height:600px;?background:#ccc;?float:left;}
.right{?width:740px;?height:600px;background:#FCC;?float:right}
.r_sub_left{?width:540px;?height:600px;?background:#9C3;?float:left}
.r_sub_right{?width:200px;?height:600px;?background:#9FC;?float:right;}
//看下面一行~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.footer{?height:50px;?background:#95F;?/*這里clear:both;*/}
</style>
</head>

<body>
<div?class="top">
????<div?class="head">head</div>
</div>
<div?class="main">
????<div?class="left">left</div>
????<div?class="right">
????	<div?class="r_sub_left">sub_left
????????</div>
????????<div?class="?r_sub_right">sub_right
????????</div>
????</div>
</div>
<div?class="footer">footer</div>
</body>
</html>