body {
    background-color: #222;
    color: #ffe;
    max-width: 40em;
    margin: auto;
    padding: 4pt 16pt 4pt 16pt;
    font-family: "Source Sans Pro", sans-serif;
    font-size: 12pt;
}
h1, h2, h3, h4, h5, h6 {
    font-family: "Crimson Pro", serif;
    font-weight: 300;
}
h1 {
    font-size: 46pt;
    margin-top: 46pt;
    margin-bottom: 12pt;
}
h2 {
    font-size: 36pt;
    margin-top: 36pt;
    margin-bottom: 12pt;
}
h3 {
    font-size: 30pt;
    margin-top: 30pt;
    margin-bottom: 12pt;
}
a {
    text-decoration: underline dotted #f99;
    color: #f99;
}

.mt-4 {
    margin-top: 24pt;
}
.text-serif {
    font-family: "Crimson Pro", serif;
}
.text-center {
    text-align: center;
}