Bootstrap中的.alert-dismissable 类用于关闭警报。
您可以尝试运行以下代码以在Bootstrap中实现Alert-dismissable类
<!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> <div class = "alert alert-warning alert-dismissable"> <button type = "button" class = "close" data-dismiss = "alert" aria-hidden = "true"> × </button> Warning ! Don’t submit this. </div> <div class = "alert alert-danger alert-dismissable"> <button type = "button" class = "close" data-dismiss = "alert" aria-hidden = "true"> × </button> Error ! Change few things. </div> </body> </html>