使用class center-block将元素设置为居中。
您可以尝试运行以下代码来实现center-block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 = "pull-right" style = "width:100px; background-color:gray; color: white;"> Float to right </div> <div class = "row"> <div class = "center-block" style = "width:200px; background-color:#ccc; color: white;"> Example for center-block </div> </div> </body> </html>