footer {
    margin-top: calc(2rem + 1vmin);
    font-size: calc(0.6rem + 1vmin);
}

.footnotes-header {
    font-size: calc(1rem + 1vmin);
}


footer .footnotes-list {
    list-style-position: outside;

    /* default indentation */
    margin-block-start: 1em;
    margin-block-end: 1em;
    padding-inline-start: min(1.5rem, 5%);
}

.external-sites-links {
    margin: auto;
    text-align: center;
    vertical-align: middle;
}


.external-site-icon {
    display: inline-block;
    vertical-align: middle;
    height: var(--basic-font-size);
    padding: 0em 0.3em 0em 0em;
}

.external-sites-links > *:not(:last-child) {
    margin-right: 1em;
}

.external-sites-link-wrapper {
    display: inline-block;
}