@media (min-width: 1200px) {
    html {
        font-size: 20px;
    }
}

blockquote {
    padding-left: 1rem;
    border-left: 10px groove lightgray;
    font-size: 1.25rem;
    font-style: italic;
}

iframe {
    max-width: 100%;
}

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