body {
    width: 33%;
    min-width: 600px;
    margin: 0 auto;
    font-family: sans-serif;
}

h1,
h2,
h3 {
    text-align: center;
}

footer {
    text-align: center;
}

img {
    margin-left: auto;
    margin-right: auto;
    display: block;
}

figcaption a {
    font-style: italic;
    font-size: small;
}