<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>丝滑版导航条</title>
<style type="text/css">
*{
margin: 0;
padding: 0;
}
ul{
list-style: none;
width: 400px;
height: 40px;
line-height: 40px;
border:2px solid gold;
margin: 40px auto;
display: flex;
justify-content: space-between;
text-align: center;
position: relative;
}
li{
width: 50px;
}
#slide{
width: 40px;
height: 2px;
background-color: green;
position: absolute;
left: 5px;
bottom: 4px;
}
</style>
</head>
<body>
<ul>
<li>娱乐</li>
<li>军事</li>
<li>历史</li>
<li>财经</li>
<li>民生</li>
<li>汽车</li>
<li>疫情</li>
<li>国内</li>
<div id="slide"></div>
</ul>
</body>
</html>
<script src="js/jquery-3.5.1.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
$("ul li").mouseenter(function(){
$("#slide").stop().animate({
left:$(this).index() * 50 + 5
}, 300)
});
</script>
