原文：https://www.cnblogs.com/gxsweb/p/5395243.html
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> <link rel="stylesheet" href="/lib/layuiadmin/layui/css/layui.css" media="all" /> </head> <body> <style type="text/css"> *{ margin: 0; padding: 0; } .center-in-center{ position: absolute; top: 50%; left: 50%; -webkit-transform: translate(-50%, -50%); -moz-transform: translate(-50%, -50%); -ms-transform: translate(-50%, -50%); -o-transform: translate(-50%, -50%); transform: translate(-50%, -50%); } </style> <h1 class="center-in-center">网站正在建设中</h1> </body> </html>