body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

img {
    max-width: 100%;
    height: auto;
}

.logo {
    display: block;
    margin-top: 20px auto;
    max-width: 100%;
}

.banner {
    display: block;
    margin-top: 20px auto;
    max-width: 100%;
}

.product-img {
    display: block;
    margin: 20px auto;
    max-width: 300px;
}

p {
    padding: 0 10px;
    margin: 20px 0;
}

@media (min-width: 768px) {
    .product-img {
        max-width: 500px;
    }

    p {
        padding: 0 20px;
        margin: 20px auto;
        max-width: 800px;
    }
}