<!DOCTYPE html> <html lang="zh"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width,initial-scale=1.0"> <title>DataEase</title> <style> html, body { margin: 0 !important; height: 100%; } .no-login-dynamic { height: 100%; background: url(./lic.png) no-repeat; background-size: cover; text-align: center; } span { color: #000; font-size: 25px; font-weight: 500; position: relative; top: 130px; } </style> </head> <body style="height: 100%;"> <div class="no-login-dynamic"> <span>缺少许可</span> </div> </body> <script> document.getElementsByTagName("body") </script> </html>