.node {
  stroke: #fff;
  stroke-width: 1.5px;
  cursor: move;
}

.link {
  stroke: #999;
  stroke-width: 3px;
  stroke-opacity: 1;
}

.label {
  fill: white;
  font-family: Verdana;
  font-size: 25px;
  text-anchor: middle;
  cursor: move;
}