怎么实现代码快照
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>实践题 - 选项卡</title>
<style type="text/css">
* {
margin: 0px;
padding: 0px;
font: 12px normal "microsoft yahei";
}
/* CSS样式制作 */
a {
text-decoration: none;
color: #000;
}
div[name="tabmain"]>ul>li {
display: inline-block;
line-height: 35px;
height: 35px;
}
ul[id="tabul"]{display:inline;}
ul[id="tabul"]>li {
text-align: center;
width: 70px;
height: 30px;
line-height: 30px;
display: inline-block;
margin-right: 5px;
border-top:2px solid #999;
border-left:2px solid #999;
border-right:2px solid #999;
background:#FFF;
}
div[id="tab"]{
position:absolute;
top:0px;
left:10px;
z-index:1;
}
div[name="tabmain"] {
position:absolute;
top:27px;
padding: 20px;
height: 200px;
width: 350px;
background:#FFF;
margin-bottom: 50px;
border-top: 5px solid #F93;
border-bottom:1px solid #00F;
border-left:1px solid #00F;
border-right:1px solid #00F
}
div[id="main"]{
height:273px;
width:392px;
position:fixed;
top:40px;
left:50px;
}
</style>
<script type="text/javascript">
// JS实现选项卡切换
window.onload=function(){
var tabs=document.getElementById("tabul").getElementsByTagName("li");
for(var i=0;i<tabs.length;i++)
{
}
}
</script>
</head>
<body>
<!-- HTML页面布局 -->
<div id="main">
<div id="tab">
<ul id="tabul">
<li><a href="#">房产</a></li>
<li><a href="#">家居</a></li>
<li><a href="#">二手房</a></li>
</ul>
</div>
<div id="tabmain" name="tabmain">
</div>
</div>
</body>
</html>
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