@media (prefers-color-scheme: light) {
  body {
    color: #12009a;
  }
  body header, body header nav ul li, body section, body footer {
    color: #12009a;
  }
  a:link, a:visited {
    color: #12009a;
    text-decoration: none;
  }
  body header nav ul li {
    border: 1px solid darkblue;
  }
  body section nav section {
    border-top: 1px solid darkblue;
  }
  body section nav ul li {
    border: 1px solid darkblue;
  }
}