body {
  max-width: 48em;
}
h1, h2, h3, h4 {
  text-align: center;
}
a.page.image {
  display: block;
  text-align: center;
}
img {
  height: 300px;
}
@media (prefers-color-scheme: dark) {
  body {
    background: black;
    color: white;
  }

}