body {
  max-width: 672px;
  margin: 0 auto;
  padding: 24px;
  line-height: 1.6;
}
header {
  margin-bottom: 32px;
}
ul {
  list-style: none;
  padding: 0;
}
li {
  margin-top: 16px;
}
a {
  text-decoration: none;
}
small {
  color: #888;
}
img {
  max-width: 100%;
}
@media (prefers-color-scheme: dark) {
  body {
    background-color: #1a1a1a;
    color: #e0e0e0;
  }
  small {
    color: #999;
  }
}