body {
    font-family: "Helvetica", "Arial", sans-serif;
    line-height: 1.5;
    color: #444;
    margin: 0 auto;
    padding: 4px 10px;
    max-width: 50em;
}

@media (prefers-color-scheme: dark) {
  body {
    color: #c9d1d9;
    background: #0d1117
  }
  a:link {
    color: #58a6ff
  }
  a:visited {
    color: #8e96f0
  }
}