body {
    margin: auto;
    max-width: 56em;
    padding: 0 2rem 0;
}

.portrait {
    margin-top: 2rem;
    margin-bottom: 2rem;
    margin-right: auto;
    margin-left: auto;
    max-width: 30%;
    display: block;
    padding: 0.2em;
    border: 1em solid black;
}

nav {
    margin-top: 0.3em;
}

.headline {

    margin-bottom: 0.1rem;

    .anchor {
        display: none;
        color: grey;
        text-decoration: none;
    }

    &:hover {

        .anchor {
            display: inline-block;
        }

    }

}

.refs,
.backlinks {
    margin: 0;
    font-size: 10pt;
}

.node {
    margin-top: 0.3rem;
    margin-bottom: 0.3rem;
}

h3 {
    font-size: 15pt;
}
h4,h5,h6 {
    font-size: 13pt;
}

@media (min-width: 90em) {
    .sidebar {
        display: block;
        position: fixed;
        top: 4.5rem;
        right: calc(50% + 31.5rem);
        width: 12.5rem;
    }
}