MediaWiki:Bswiki.css

.nav-pills.list-unstyled.sub-side-menu {
background-color: red;
}

.nav.nav-pills.nav-stacked.left-margin-zero {
background-color: blue;
}

.nav-pills>li>a {
    border-radius: 0px;
}

.nav-pills > li.active > a, .nav-pills > li.active > a:hover, .nav-pills > li.active > a:focus {
  background-color: #127a23;
  color: #fff;
}