body{margin:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}.container{background:#efefef;border-radius:10px;max-width:400px;margin:80px auto;padding:20px;box-shadow:0 4px 10px #0000001a}@media (max-width:768px){.container{max-width:90%;margin:40px auto;padding:15px}}@media (max-width:480px){.container{max-width:95%;margin:20px auto;padding:10px}}