body {
    margin: 0 auto;
    max-width: 50em;
    font-family: "Roboto", "Helvetica", "Arial", sans-serif;
    line-height: 1.5;
    padding: 4em 1em;
    color: #444;
}

h1, h2, strong {
    color: #333;
}

h2 {
    margin-top: 1em;
    padding-top: 1em;
}

img {
    max-width: 100%;
    height: auto;
}