新增黃色背景色到一個元素以在 Bootstrap 中設定警告操作
要在 Bootstrap 中為按鈕設定警告操作,請使用 btn-warning 按鈕。你可以嘗試執行以下程式碼來實現 btn-warning 按鈕
示例
<!DOCTYPE html> <html> <head> <title>Bootstrap Example</title> <link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css"> <script src = "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <script src = "https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> </head> <body> <p>Click below if you want to know the warning message:</p> <button type = "button" class = "btn btn-warning">Warning</button> </body> </html>
廣告