#FibTreeCON {
  height: 500px
}

#FibTreeCON .jsavtree .jsavnode {
  border-radius: 1px;
  width: 60px;
  line-height: 15px;
  color: white;
  border: 1.2px solid black;
  background: linear-gradient(0deg, red, red 49%, white 49%, white 51%, blue 51%);
}