jQuery实现导航栏头部菜单项点击后变换颜色的方法实例详解

程序员文章站 2022-03-17 13:13:56

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本文主要介绍了jQuery实现导航栏头部菜单项点击后变换颜色的方法,涉及jQuery响应鼠标事件针对页面元素的遍历及属性变换相关操作技巧,需要的朋友可以参考下，希望鞥帮助到大家。

实现效果如下:

话不多说直接上代码:

<!DOCTYPE html> 
<html> 
<head> 
  <meta charset="UTF-8"> 
  <title>Title</title> 
  <style> 
    a{ 
      text-decoration: none; 
      color: black; 
    } 
    #menu{ 
      width: 100%; 
      height: 20px; 
      background: gainsboro; 
    } 
    ul li{ 
      list-style: none; 
      float: left; 
      padding-left: 20px; 
      background-color: whitesmoke; 
    } 
    .active { 
      color: white; 
      background-color: black; 
    } 
    .none { 
      background-color: whitesmoke; 
    } 
  </style> 
</head> 
<body> 
<ul id="menu"> 
  <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >首页</a></li> 
  <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >直播</a></li> 
  <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >新闻</a></li> 
  <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >关于</a></li> 
</ul> 
<script src="jquery-1.7.2.min.js"></script> 
<script> 
  $('#menu li a').click(function () { 
    var f = this; 
    $('#menu li a').each(function () { 
      this.className = this == f ? 'active' : 'none' 
    }); 
  }); 
</script> 
</body> 
</html>