abstract：<!DOCTYPE html><html><head> <title>下划线跟随导航</title> <script type="text/javascript" src="jquery-3.3.1.min.js"></script> <style type="
<!DOCTYPE html>
<html>
<head>
<title>下划线跟随导航</title>
<script type="text/javascript" src="jquery-3.3.1.min.js"></script>
<style type="text/css">
*{padding:0;margin:0;}
.menu{background: red;height: 50px;width: 500px;border-radius: 5px;margin: 20px auto;margin-top: 20px;box-shadow: 0 2px 20px;position:relative;}
ul {list-style: none;z-index:20;position:relative;font-size: 15px;}
li {float:left;cursor:pointer;width:100px;height: 30px;text-align:center;line-height:50px;color: #ccc;font-weight: bold;}
</style>
<script type="text/javascript">
$(document).ready(function(){
$('li').hover(
function(){
$x = parseInt($(this).attr('name'))*100 //parseInt四舍五入,attr获取当前数值
$('.block').stop().animate({left:$x+'px'},100)
},
function(){
$('.bock').stop().animate({left:'0px'},100)
}
)
})
</script>
</head>
<body>
<div class="menu">
<ul>
<li name="0">首页</li>
<li name="1">案例</li>
<li name="2">新闻</li>
<li name="3">咨询</li>
<li name="4">联系</li>
</ul>
<div class="block" style="z-index:10;width:100px;height:2px;background:#fff;position:absolute;top:50px;"></div>
</div>
</body>
</html>
Correcting teacher：查无此人Correction time：2018-12-27 09:25:13
Teacher's summary：做的不错。以后的作业，可以加上自己的总结。老师可以知道你的思路，给你一些指导
