下滑线跟随导航
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>下滑先跟随导航</title>
<script type="text/css" src="../jquery-3.4.1.min.js"></script>
<style type="text/css">
*{margin: 0px;padding: 0px}
ul{list-style-type: none;z-index: 20;position: relative;font-size: 15px}
li{float: left;cursor: pointer;width: 100px;height: 30px;text-align: center;line-height: 30px;color: #ffffff;font-weight: bold}
.menu{width: 700px;position: relative;margin: 20px auto;height: 32px;box-shadow: 0 2px 20px orangered;background: pink;border-radius: 3px}
</style>
<script type="text/javascript">
$(function () {
$('li').hover(
function () {
$x=parseInt($(this).attr('name'))*100;
$('.block').stop().animate({left:$x+'px'},300)
},
function () {
$('.block').stop().animate({left:'0px'},300)
}
)
})
</script>
</head>
<body>
<div class="menu">
<ul>
<li name="0">首页</li>
<li name="1">视频教程</li>
<li name="2">社区问答</li>
<li name="3">技术文章</li>
<li name="4">编程词典</li>
<li name="5">资源下载</li>
<li name="6">菜鸟随堂</li>
</ul>
<div class="block" style="z-index: 10;width: 100px;height: 2px;background: orangered;position: absolute;top: 30px;"></div>
</div>
</body>
</html>