body{font-family:Arial,sans-serif;background-color:#f0f0f0;text-align:center;padding:20px}h1{color:#333}form{background-color:#fff;border:1px solid #ccc;border-radius:5px;padding:20px;margin:20px auto;max-width:400px;box-shadow:0 0 10px rgba(0,0,0,.2)}label{display:block;margin-bottom:10px;font-weight:700}input[type=number],select{width:100%;padding:10px;border:1px solid #ccc;border-radius:3px}select[multiple]{height:100px}button{background-color:#007bff;color:#fff;border:none;border-radius:5px;padding:10px 20px;cursor:pointer;font-size:16px;margin-top:20px}button:hover{background-color:#0056b3}