body {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 13pt;
    line-height: 1.25;
    color: #111;
    background-color: #fbfbfb;
    padding: 1em;
    max-width: 60em;
}

pre {
    background-color: darkgray;
    padding: 1em;
}

code {
    background-color: darkgray;
    padding: .1em;
}