body {
    font-family: 'SF mono', SFMono-Regular, ui-monospace, monospace;
    color: #333;
    background-color: #fff;
    height: 100vh; /* full viewport height */
    margin: 0; /* remove default margin */
}

#section {
    font-size: 1.5em;
    display: block;
    text-align: center;
}

#text {
    display: block;
    font-size: 1em;
    width: 40em;
    margin: 0 auto;
    padding: 1em;
    text-align: left;
}

h1, h2, h3 {
    margin: 0;
}