body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    padding: 20px;
}

h1 {
    color: #333;
}

form {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}