当您要将DOM组件放在一个盒子中时，使用面板组件。要获得基本面板，只需将类.panel添加到<div>元素中。
您可以尝试运行以下代码以在Bootstrap中实现面板类
<!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 style = "background: blue;"> <div class = "panel panel-default"> <div class = "panel-body"> Demo panel </div> </div> </body> </html>