<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>百度导航栏</title>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
.root{
width: 100%;
height: 40px;
background-color: darkblue;
margin-top: 50px;
}
.root ul{
list-style: none;
width: 900px;
margin: 0 auto;
height: 40px;
line-height: 40px;
color: white;
font-weight: bold;
position: relative;
}
.root ul li{
float: left;
text-align: center;
width: 65px;
position: relative;
z-index: 1;
}
.root ul li:first-of-type{
background-color: darkred;
}
.slide{
width: 65px;
height: 40px;
background-color: darkred;
position: absolute;
left: 0px;
top: 0;
}
</style>
</head>
<body>
<div class="root">
<ul>
<li>首页</li>
<li>国内</li>
<li>国际</li>
<li>军事</li>
<li>财经</li>
<li>娱乐</li>
<li>体育</li>
<li>互联网</li>
<li>科技</li>
<li>游戏</li>
<li>女人</li>
<li>汽车</li>
<li>房产</li>
<div class="slide"></div>
</ul>
</div>
</body>
</html>
<script src="js/jquery-3.5.1.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
var index = 0;
$(".root ul li").click(function(){
$(this).css("background-color","darkred").siblings("li").css("background-color","transparent");
index = $(this).index();
})
$(".root ul li").mouseenter(function(){
$(".slide").stop().animate({
left: $(this).index() * $(this).innerWidth(),
},300,"linear")
})
$(".root ul").mouseleave(function(){
$(".slide").stop().animate({
left:index * $("li").innerWidth(),
})
})
</script>
