body {
    margin: 0;
    padding: 0;

    font-family: 'Times New Roman', Times, serif;

    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

* {
    box-sizing: border-box;
}

main {
    max-width: 800px;
    padding: 64px;
}

@media (max-width: 800px) {
    main {
        padding: 16px;
    }
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #333;
        color: #fff;
    }
}

h1 {
    text-align: center;
}

.subtle {
    opacity: 0.25;
}

.attribution {
    opacity: 0.25;
    text-align: center;
}

.center-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}