* {
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #f4f4f4;
    color: #333;
}

@media (max-width: 768px) {
    .row {
        flex-direction: column;
    }

    .container {
        padding: 30px 15px;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
}