Split div into three equal parts: snippet 3

gistfile1.css

.splitter_panel .vsplitter {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 6px !important;
  background-color: gray;
  cursor: ew-resize;
  line-height: 15px;
  font-size: 14px;
  overflow: hidden;
}
.splitter_panel .vsplitter:before {
  content: ' * * * ';
  color: white;
  position: absolute;
  top: 50%;
}