body {
  color: #333;
  font-family: helvetica, arial, sans-serif;
  line-height: 1.5;
  margin: 0 auto;
  max-width: 40em;
  padding: 0 1em;
  font-size: 24px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 1.25em 0 0.5em 0;
  line-height: 1.2;
}

a:link {
  color: #00e;
}

a:visited {
  color: #518;
}

a:focus,
a:hover {
  color: #03f;
}

a:active {
  color: #e00;
}

h1 a:empty:before,
h2 a:empty:before,
h3 a:empty:before,
h4 a:empty:before,
h5 a:empty:before,
h6 a:empty:before {
  content: "#";
}

h1 a:empty,
h2 a:empty,
h3 a:empty,
h4 a:empty,
h5 a:empty,
h6 a:empty {
  visibility: hidden;
  padding-left: 0.25em;
}

h1:hover a:empty,
h2:hover a:empty,
h3:hover a:empty,
h4:hover a:empty,
h5:hover a:empty,
h6:hover a:empty {
  visibility: visible;
}

img {
  max-width: 100%;
}

figure {
  margin: 1em 0;
  text-align: center;
}

figcaption {
  font-size: small;
}

pre,
code,
samp,
kbd {
  font-family: monospace, monospace;
}

pre,
code,
kbd {
  color: #050;
}

samp {
  color: #730;
}

pre,
blockquote {
  background: #eee;
  padding: 0.5em;
}

pre {
  overflow: auto;
}

blockquote {
  border-left: medium solid #ccc;
  margin: 1em 0;
}

blockquote :first-child {
  margin-top: 0;
}

blockquote :last-child {
  margin-bottom: 0;
}

table {
  border-collapse: collapse;
}

th,
td {
  border: thin solid #999;
  padding: 0.3em 0.4em;
  text-align: left;
}

@media (prefers-color-scheme: dark) {
  body {
    background: #111;
    color: #bbb;
  }

  a:link {
    color: #9bf;
  }

  a:visited {
    color: #caf;
  }

  a:focus,
  a:hover {
    color: #9cf;
  }

  a:active {
    color: #f99;
  }

  pre,
  code,
  kbd {
    color: #9c6;
    font-family: monospace, monospace;
  }

  samp {
    color: #db0;
  }

  pre,
  blockquote {
    background: #000;
  }

  blockquote {
    border-color: #333;
  }

  th,
  td {
    border-color: #666;
  }
}