复制代码 代码如下:
<html>
<head>
<meta charset="utf-8"/>
<style type="text/css">
*{margin:0;padding:0;border:0}
#main{width:300px;height:300px;background-color:green}
#head{height:50px;background-color:red}
#head li{float:left;list-style:none;height:50px;width:72px;text-align:center;line-height:50px;background-color:orange;margin-right:3px}
</style>
</head>
<body>
<div id="main">
<div id="head">
<ul>
<li id="tab1">新闻</li>
<li id="tab2">体育</li>
<li id="tab3">音乐</li>
<li id="tab4">娱乐</li>
</ul>
</div>
<div id="content">
<p id="p1">今天习总书记去乌干达访问了</p>
<p id="p2">乔丹改打乒乓球了</p>
<p id="p3">江南style</p>
<p id="p4">赵本山退出春晚</p>
</div>
</div>
</body>
<script>
function show(n){
for(var i=1;i<=4;i++){
//先把所有的选项卡背景颜色设为橙色，内容都隐藏
document.getElementById("tab"+i).style.backgroundColor = 'orange';
document.getElementById("p"+i).style.display = 'none';
}
document.getElementById("tab"+n).style.backgroundColor = 'green';
document.getElementById("p"+n).style.display = "block";
}
</script>
</html>