body {
    background-color: #b2681e;
    font-size: 1.3rem;
}

main {
    width: 85%;
    margin: auto;
}

#landing h1 {
    font-size: 4rem;
}

.has-background-red {
    background-color: #8e0132;
}

.has-background-brown {
    background-color: #654321;
}

iframe {
    margin-top: 100px;
    width: 680px;
    height: 360px;
}

@media only screen and (max-width: 397px) {
    :root {
        font-size: 0.5rem;
    }
}

@media only screen and (min-width: 397px) and (max-width: 600px) {
    :root {
        font-size: 0.6rem;
    }
}

@media only screen and (max-width: 600px) {
    main {
        width: 100%;
    }
}

@media only screen and (min-width: 580px) and (max-width: 769px) {
    :root {
        font-size: 0.7rem;
    }
}

@media only screen and (max-width: 769px) {
    iframe {
        margin-top: 0;
        margin: auto;
        width: auto;
        height: auto;
    }
}

@media only screen and (min-width: 769px) and (max-width: 1300px) {
    iframe {
        margin-top: 100px;
        width: 380px;
        height: 240px;
    }
}