W3.CSS - 导航

W3.CSS 有几个特殊的类可以在网站上快速显示导航栏或菜单。

先生。没有。 类名和描述
1

w3-顶部导航

将列表样式设置为水平菜单/导航栏。
2

w3-sidenav

将列表样式设置为垂直菜单/导航栏。

例子

w3css_navigation.htm

现场演示 
<html>
   <head>
      <title>The W3.CSS Navigation</title>
      <meta name = "viewport" content = "width=device-width, initial-scale = 1">
      <link rel = "stylesheet" href = "https://www.w3schools.com/lib/w3.css">
      <link rel = "stylesheet" href = "http://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.4.0/css/font-awesome.min.css">
      <link rel = "stylesheet" href = "https://fonts.googleapis.com/icon?family=Material+Icons">
   </head>
   
   <body class = "w3-container">
      <h2>Navigation Demo</h2>
      <hr/>
      <h3>Horizontal top navigation bar</h3>
      <nav class = "w3-topnav w3-red">
         <a href="#">Home</a>
         <a href="#">Overview</a>
         <a href="#">Environment</a>
         <a href="#">Containers</a>
         <a href="#">Grids</a>
      </nav>
      
      <h3>Using font awesome icons</h3>
      <nav class = "w3-topnav w3-red">
         <a href="#"><i class="fa fa-home"></i></a>
         <a href="#">Overview</a>
         <a href="#">Environment</a>
         <a href="#">Containers</a>
         <a href="#">Grids</a>
      </nav>
      
      <h3>Using material icons</h3>
      <nav class = "w3-topnav w3-red">
         <a href="#"><i class="material-icons">home</i></a>
         <a href="#">Overview</a>
         <a href="#">Environment</a>
         <a href="#">Containers</a>
         <a href="#">Grids</a>
      </nav>
      
      <h3>Using Side Navigation</h3>
      <nav class = "w3-sidenav w3-red w3-card-2" style="width:25%">
         <a href="#">Home</a>
         <a href="#">Overview</a>
         <a href="#">Environment</a>
         <a href="#">Containers</a>
         <a href="#">Grids</a>
      </nav>
   </body>
</html>

结果

验证结果。