body {
    font-family: 'Alte Haas Grotesk', sans-serif;
    line-height: 1.4;
    margin: 0;
    padding-top: 5em;
    padding-left: 20em;
    font-size: 0.8em;
}
.back-link {
    position: absolute;
    top: 1.5em;
    left: 2em;
}
.list {
    margin-top: 2em;
    
}
.list ul {
    list-style: none;
    padding-left: 0;
}

.list li::before {
    content: "#";
    margin-right: 0.6em;
}
.sideimage {
    position: absolute;
    width: 40vw;
    right: 15em;
    top: 8em;
}
.sideimage img {
    max-width: 80%;
    height: auto;
}
[hidden] {
    display: none !important;
}
.list li a.active {
    text-decoration: underline;
}
.preview {
    position: fixed;
    width: 40vw;
    top: 1em;
    bottom: 1em;
    right: 5em;
}
.preview iframe {
    width: 100%;
    height: 100%;
    border: none;
}

@media (max-width: 900px) {
    body {
        padding-left: 2em;
    }
    .sideimage {
        width: 80vw;
        right: 0;
        top: 0;
        position: relative;
    }
    .preview {
        width: 100vw;
        height: 100vh;
        margin-left: -2em;
        right: 0;
        top: 0;
        bottom: auto;
        position: relative;
    }
}