用jquery写一个选项卡
该实例需要自己下载 jquery-3.1.1.js
代码如下：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css" media="screen">
body,ul{
margin: 0;
padding: 0;
list-style: none;
}
.box {
width: 400px;
margin: 50px auto;
border: 1px solid #000;
padding: 20px;
}
.tab-menu{
height: 30px;
background: pink;
padding: 20px 0;
}
.tab-menu li{
float: left;
font: 12px/30px Arial;
background: blue;
color: #fff;
width: 100px;
text-align: center;
border-radius: 6px 6px 0 0;
margin: 0 16px;
cursor: pointer;
}
.tab-menu .active{
background: gold;
}
.tab-content{
margin-top: 20px;
border: 1px solid #666;
}
.tab-content li{
font: 40px/200px ARial;
text-align: center;
display: none;
}
.tab-content .show{
display: block;
}
</style>
<script type="text/javascript" src="js/jquery-3.1.1.js"></script>
</head>
<body>
<div class="box">
<ul class="tab-menu">
<li class="active">选项卡菜单1</li>
<li>选项卡菜单2</li>
<li>选项卡菜单3</li>
</ul>
<ul class="tab-content">
<li class="show">选项卡内容1</li>
<li>选项卡内容2</li>
<li>选项卡内容3</li>
</ul>
</div>
<script type="text/javascript">
$('.tab-menu').find('li').mouseover(function(){
$(this).addClass('active').siblings().removeClass('active');
$('.tab-content').find('li').eq($(this).index()).addClass('show').siblings().removeClass('show');
})
</script>
</body>
</html>