  position: absolute;
  pointer-events: none;
}

.toolbox:after {
  border-color: rgba(0, 0, 0, 0);
  border-top-color: #ddd;
  border-width: 10px;
  margin-left: -10px;
}
.toolbox:before {
  border-color: rgba(204, 204, 204, 0);
  border-top-color: #aaa;
  border-width: 12px;
  margin-left: -12px;
}

#references-pane-container {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 250px;
  display: none;
  background-color: #ddd;
  z-index: 1;
}

#references-pane-table-container {
  overflow-x: