body {
    font-family: Arial, sans-serif;
}

.login-form {
    width: 300px;
    margin: 100px auto;
}

form {
    display: flex;
    flex-direction: column;
}

form input, form select, form button {
    margin: 10px 0;
    padding: 10px;
    font-size: 16px;
}

.error {
    color: red;
}