quicktabs.css

body{
  background:#363534;
}
div.title {
  color: white;
}
.qs_input {
  background: #363534;
  color: white;
}
div.separator.big {
  color: #757575;
}
.item:hover, .item:hover div.title, div.closed.item:hover div.title,
.item:hover div.url {
  background-color: #41505E;
  color: white;
}
.withfocus:hover, .withfocus:hover div.title, div.closed.withfocus:hover div.title,
.withfocus:hover div.url,
.withfocus, .withfocus div.title, div.closed.withfocus div.title,
.withfocus div.url {
  background-color: #333F4A;
  color: white;
}