CSS【2018.11.29】

<!DOCTYPE html>
<html>
<head>
  <meta charset="gbk"/>
  <title></title>
  <style type="text/css">
    ul{
      list-style-type:none;
      margin:0;
      padding:0;
      width:200px;
      background-color:#f1f1f1;
    }

    li a{
      display:block;
      color:#000;
      padding:8px 16px;
      text-decoration:none;
    }

    li a.active{
      background-color:black;
      color:white;
    }

    li a:hover:not(.active){
      background-color:#555;
      color:red;
    }
  </style>
</head>
<body>
   <h2>垂直导航条</h2>
   <p>在点击了选项后,我们可以添加 "active" 类来标准哪个选项被选中。</p>

   <ul>
      <li><a class="active" href="#home">主页</a></li>
      <li><a href="#news">新闻</a></li>
      <li><a href="#contact">联系</a></li>
      <li><a href="#about">关于</a></li>
   </ul>
</body>
</html>

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转载自blog.csdn.net/weixin_30589127/article/details/84668759
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