#navigation {display: none;}

table {
  border: thin solid black;
  border-collapse: collapse;
}

td, th {
  border: thin dotted black;
  padding: 5px;
}

#main h3 {border-bottom: medium solid black;}

#main h4 {
    margin: 0;
    border-bottom: thin solid black;
}

#main a[href][class="external"]:after {
  content:" <"attr(href)">";
  font-style:italic;
  background-color:inherit;
  color:gray;
}