form {
    max-width: 400px;
    padding: 20px;
    border: 1px solid #ddd;
    background: #f9f9f9;
}

input {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
}

button {
    background: #0073aa;
    color: white;
    padding: 10px;
    border: none;
    cursor: pointer;
}