body {
    color: #263238;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.7;
    margin: 0;
}

header,
footer {
    background: #102d4f;
    color: #fff;
}

header nav,
main,
footer div {
    margin: 0 auto;
    max-width: 900px;
    padding: 24px;
}

header a,
footer a {
    color: #fff;
}

main {
    min-height: 65vh;
}

h1,
h2 {
    line-height: 1.25;
}

h2 {
    margin-top: 32px;
}

.updated {
    color: #5f6b75;
}