body {
    max-width: 72ch;
    margin: 0 auto;
    padding: 2rem 1rem;
    line-height: 1.6;

    font-family: sans-serif;
}

/* Front page */

body.front-page {
    /* max-width: 100ch; */
}

/* Header */

h1 {
    margin-top: 0;
    margin-bottom: 0;
}

#author {
    margin-top: 0;
    text-align: right;

    font-style: italic;
}

/* Footer */

footer {
    text-align: center;
    font-size: 80%;
    color: #666;
}

/* Content */

img {
    max-width: 100%;
}

.block-math {
    font-size: 120%;
    text-align: center;
}