body {
    min-height: 100vh;
    margin: 0;

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

    font-family: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
}

footer {
    align-self: flex-end;
    margin: 1rem;
}

h1, footer {
    margin-block-start: auto;
}