<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
* {margin: 0;padding: 0;}
ul {list-style: none;}
.box {
width: 1000px;height: 475px;margin: 100px auto;
}
.tab {
border: 1px solid rgba(205, 211, 211, 0.87); height: 36px;width: 320px;
}
.tab-item {
width: 80px;height: 34px;float: left;line-height: 34px;
text-align: center;border-top: 3px solid white;
/* 3px是为了去掉和hover状态下3pxborder-top的变化过程 */
}
span {
padding-left: 5px; color: rgba(205, 211, 211, 0.87);
}
.tab-item:hover {border-top: 3px solid red;}
.active {border-top: 3px solid red;}
.products {border: 1px solid rgba(205, 211, 211, 0.87);}
.products .main {display: none;}
.products .selected {display: block;}
</style>
</head>
<body>
<div class="box">
<ul class="tab">
<li class="tab-item active">国际大牌<span>|</span></li>
<li class="tab-item">国妆名牌<span>|</span></li>
<li class="tab-item">清洁用品<span>|</span></li>
<li class="tab-item">男士精品</li>
</ul>
<div class="products">
<div class="main selected">
<a href="###"><img src="images/guojidapai.jpg" alt=""/></a>
</div>
<div class="main">
<a href="###"><img src="images/guozhuangmingpin.jpg" alt=""/></a>
</div>
<div class="main">
<a href="###"><img src="images/qingjieyongpin.jpg" alt=""/></a>
</div>
<div class="main">
<a href="###"><img src="images/nanshijingpin.jpg" alt=""/></a>
</div>
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/3.4.1/jquery.js"></script>
<script>
$(function(){
$("li").mouseenter(function(){
$(this).addClass("active");
$(this).siblings().removeClass("active");
// 给li注册事件，this添加active同时去掉其他相邻兄弟的active
var idx=$(this).index();//当前的索引放在idx中
$(".main").eq(idx).addClass("selected").siblings().removeClass("selected");
//.main中当前索引添加selected，其他去掉selected
});
});
</script>
</body>
</html>
jq制作tab栏
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转载自www.cnblogs.com/sandraryan/p/11078599.html
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