源代码:
<!DOCTYPE html> <html> <head> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="http://apps.bdimg.com/libs/bootstrap/3.3.0/css/bootstrap.min.css"> </head> <body> <div class="container"> <h2>按钮</h2> <p> .active 类表示按钮被点击:</p> <button type="button" class="btn btn-default">默认按钮</button> <button type="button" class="btn btn-default active">点击激活的默认按钮</button> <br><br> <button type="button" class="btn btn-info">信息按钮</button> <button type="button" class="btn btn-info active">点击激活的信息按钮</button> </div> <script src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script> <script src="http://apps.bdimg.com/libs/bootstrap/3.3.0/js/bootstrap.min.js"></script> </body> </html>
运行结果：