regexplain/inst/styles/gadget.css

th,
td {
  padding: 10px 13px;
  text-align: left;
  border-bottom: 1px solid #E1E1E1; }
th:first-child,
td:first-child {
  padding-left: 0; }
th:last-child,
td:last-child {
padding-right: 0; }

#help-sidebar {
  padding-top: 5px;
  padding-left: 10px;
}
#help-sidebar ul {
  list-style-type: none;
  font-size: 1.1em;
}
#help-sidebar li {
  list-style: none;
}
#help-sidebar .header li {
  padding: 3px;
}
#help-sidebar a {
  display: block;
  width: 100%;
  text-decoration: none;
  text-align: left;
  padding: 3px;
}
#help-sidebar .subgroup {
  padding-left: 0px;
}
#help-sidebar .subgroup a {
  padding-left: 15px;
}
#help-sidebar a:hover {
  background-color: #eee;
  text-decoration: none;
}