.node circle {
  fill: #fff;
  stroke: #888;
  stroke-width: 1px;
}

.node rect {
  fill: #fff;
  stroke: #444;
  stroke-width: 1px;
  cursor: pointer;
}

.node text {
  font: 12px sans-serif;
}

.node text.node-title {
  pointer-events: none;
}

.link path{
  fill: none;
  stroke: #ccc;
  stroke-width: 2px;
}

div.tooltip {
  position: absolute;
  text-align: center;
  padding: 2px;
  font: 12px sans-serif;
  background: lightsteelblue;
  border: 1px solid steelblue;
  border-radius: 8px;
  pointer-events: none;
}

div.tooltip th {
  padding: 3px;
}

#select-container {
  position: absolute;
  top: 0px;
  left: 0px;
}