body {
    margin: 40px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    display: flex;
    gap: 80px;
}

nav {
    min-width: 150px;
    flex-shrink: 0;
}

main {
    max-width: 650px;
}

ul {
    list-style-type: none;
    padding-left: 0;
}

h1 {
    margin-bottom: 0.2em;
    font-size: 14px;
    font-weight: normal;
}

h2 {
    margin-top: 0;
}

a {
    color: #00e;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}