<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Welcome to Mietubl Online Marketing System</title> <style> /* 页面基础样式 */ body { font-family: 'Arial', sans-serif; margin: 0; padding: 0; height: 100vh; background-color: #f0f0f0; display: flex; justify-content: center; align-items: center; } /* 居中显示的容器 */ .container { text-align: center; background-color: #ffffff; padding: 30px; border-radius: 10px; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); } /* 欢迎文本样式 */ h1 { font-size: 36px; color: #333333; margin-bottom: 10px; } /* 添加动画 */ .container h1 { animation: fadeIn 1.5s ease-in-out; } /* 动画效果 */ @keyframes fadeIn { 0% { opacity: 0; transform: translateY(-20px); } 100% { opacity: 1; transform: translateY(0); } } </style> </head> <body> <div class="container"> <h1>Welcome to Mietubl Online Marketing System</h1> </div> </body> </html>