下滑线跟随导航及总结

Original 2018-12-16 11:17:59 217
abstract: <!DOCTYPE html> <html> <head>          <meta charset="utf-8">         
<!DOCTYPE html>
<html>
<head>
         <meta charset="utf-8">
         <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: 0px;margin: 0px;}
                  ul{list-style: none; z-index:20;position: relative;}
                  li{float: left;cursor: pointer;height: 40px;width: 100px;text-align: center;line-height: 40px;color: #fff;}
                  .menu{width: 500px;height: 40px; position:relative;margin: 50px auto;box-shadow: 0 4px 20px #000;background:#FF9800;border-radius: 5px;}
         </style>
         <script type="text/javascript">
                  $(function(){
                          $('li').hover(
                          function(){
                                   $x=parseInt($(this).attr('name'))*100
                                   $('.move').stop().animate({left:$x+'px'},300)
                          },
                          function(){
                                   $('.move').stop().animate({left:'0px'},300)
                          }
                          )
                  })
         </script>
</head>
<body>
         <div>
         <ul>
                  <li name="0">首页</li>
                  <li name="1">课程中心</li>
                  <li name="2">计划中心</li>
                  <li name="3">考生中心</li>
                  <li name="4">留言中心</li>
         </ul>
         <div style="z-index: 10; width: 100px;height: 2px;background: #fff;position: absolute;margin-top:38px;"></div>
         </div>
</body>
</html>

总结:

  1. z-index的层级关系

  2. 自定义动画animate()的运用

Correcting teacher:天蓬老师Correction time:2018-12-16 11:29:48
Teacher's summary:下划线自动跟随,有很多种实现方法, 想想看, 不用jQuery, 如何实现呢?

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