body{margin:0;font-family:Arial,sans-serif;background-color:#f4f4f9;color:#333;display:flex;justify-content:center;align-items:center;height:100vh}.container{text-align:center}h1{font-size:2.5rem;color:#222}p{font-size:1.2rem;margin-top:10px;color:#555}button{background-color:#007bff;color:#fff;padding:12px 24px;border:none;border-radius:5px;font-size:1rem;margin-top:20px;cursor:pointer;transition:background-color .3s ease}button:hover{background-color:#0056b3}