App下载
实例代码( Tip: 登录后体验更佳 )
<!DOCTYPE html>
<html>
<head>
<title>W3.CSS(w3cschool.cn)</title>
<meta name="viewport" content="width=device-width, initial-scale=1" charset="UTF-8">
<link rel="stylesheet" href="https://7npmedia.w3cschool.cn/w3.css">
</head>
<body>
<div class="w3-container">
<h2></h2>
<p><strong>:</strong> </p>
<div class="w3-bar-block w3-black">
<a class="w3-bar-item w3-button" href="#"></a>
<a class="w3-bar-item w3-button" href="#"> 1</a>
<a class="w3-bar-item w3-button" href="#"> 2</a>
<div class="w3-dropdown-hover">
<button class="w3-button">
<i class="fa fa-caret-down"></i>
</button>
<div class="w3-dropdown-content w3-bar-block w3-card-4">
<a href="#" class="w3-bar-item w3-button"> 1</a>
<a href="#" class="w3-bar-item w3-button"> 2</a>
<a href="#" class="w3-bar-item w3-button"> 3</a>
</div>
</div>
</div>
</div>
</body>
</html>
 
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运行结果