body {
    display: grid;
    min-height: 100%;
    grid-template:
        ".    header            .   " min-content
        ".    main              .   " 1fr
      /  1fr  min(95vw, 35em)   1fr;
    font-family: serif;
}

header {
    grid-area: header;
    border-bottom: 1px solid #888;
}

header h1 {
    padding: 0;
    margin: 0.3rem 0;
    font-style: italic;
    font-family: sans-serif;
    font-size: 1.2rem;
    text-align: right;
}

main {
    grid-area: main;
}

main h1,
main h2 {
    margin-bottom: 0.2rem;
}

main h1:first-child {
    margin-top: 0.5rem;
}

main p {
    margin-top: 0.5rem;
}

main p:first-child {
    margin-top: 1rem;
}