Bootstrap案例 - W3xue在线HTML/CSS/JS运行工具

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<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>W3xue教程(w3xue.com)</title> 
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="/css/bootstrap/bootstrap3.3.7.min.css">  
    <script src="/js/bootstrap/jquery.min.js"></script>
    <script src="/js/bootstrap/bootstrap3.3.7.min.js"></script>
</head>
<body>
    
<div class="container">
    <h2>按钮</h2>
    <p> .btn-default 类是默认/标准按钮样式:</p>
    <button type="button" class="btn btn-default">默认</button>
</div>
    
</body>
</html>