* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: system-ui, sans-serif; /* Same font as in diagrams */
}

main > :is(h1, h2, nav, ul) {
    margin: 1rem;
}

ul {padding-left: 1.5rem} /* Bullet room the reset removed */