.expand-stub + a {
    font-weight: normal;
}

.affix ul.level1 > li.active > a {
    font-weight: bold;
}

.affix ul > li.active > ul,
.affix ul > li.active > a:before,
.affix ul > li > a:hover:before {
  display: block;
  white-space: nowrap;
}

.affix ul > li > a:before {
  content: "|";
  font-size: 16px;
  top: 1px;
  left: 0;
}