body{font-family:Arial,sans-serif;background-color:#f4f4f4;text-align:center;margin:20px}input{padding:8px;margin:5px;font-size:16px;border:1px solid #ccc}button{padding:8px 16px;font-size:16px;background-color:#4caf50;color:#fff;border:none;cursor:pointer}button:hover{background-color:#45a049}ul{list-style:none;padding:0}li{margin:5px 0;font-size:18px}h1,h2{color:#333}