点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>千木教程(qianmu.net)</title> <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script> <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>按钮</h2> <p> .btn-primary 类可表示为原始按钮样式（未被操作）:</p> <button type="button" class="btn btn-primary">原始按钮</button> </div> </body> </html>
运行结果
