body { font-family: Arial, sans-serif; background-color: #f4f4f4; text-align: center; margin: 0; padding: 20px; } .container { background: white; padding: 20px; border-radius: 10px; box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1); max-width: 500px; margin: auto; } h1 { color: #333; } button { background: #007bff; color: white; border: none; padding: 10px; margin-top: 10px; cursor: pointer; border-radius: 5px; } button:hover { background: #0056b3; } p { background: #eee; padding: 10px; border-radius: 5px; }