要设置引导按钮的活动状态，请使用.active类。
该按钮将显示为按下状态，如以下代码所示
<!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <link href = "/bootstrap/css/bootstrap.min.css" rel = "stylesheet"> <script src = "/scripts/jquery.min.js"></script> <script src = "/bootstrap/js/bootstrap.min.js"></script> </head> <body> <p>The following are some buttons:</p> <button type = "button" class = "btn btn-default btn-lg "> Default Button </button> <button type = "button" class = "btn btn-default btn-lg active"> Active Button </button> </body> </html>