<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>lunbo</title>
<style>
* {
margin: 0;
padding: 0;
}
ul {
list-style: none;
}
.box {
width: 350px;
height: 400px;
border: 1px solid #ccc;
margin: 100px auto;
}
.mt span {
display: inline-block;
width: 80px;
height: 30px;
background-color: pink;
text-align: center;
line-height: 30px;
cursor: pointer;
}
.mt span .current {
background-color: purple;
}
.mb li {
width: 100%;
height: 30px;
background-color: purple;
}
.mb li .show {
display: block;
}
.mt
</style>
<script>
window.onload = function () {
var spans = document.getElementsByTagName("span");
var lis = document.getElementsByTagName("li");
for(var i=0;i<spans.length;i++)
{
span[i].onmouseover=function(){
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spans[j].className="";
lis[j].className="";
}
this.className="current";
lis[this.index].className="show";
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</script>
</head>
<body>
<div class="box">
<div class="mt">
<span class="current">新闻</span>
<span>体育</span>
<span>娱乐</span>
<span>八卦</span>
</div>
<div class="mb">
<ul>
<li>
新闻模块
</li>
<li>
体育模块
</li>
<li>
娱乐模块
</li>
<li>
八卦模块
</li>
</ul>
</div>
</div>
</body>
</html>
