react-hierarchy-tree-graph/src/Tree/style.css

React component to create interactive D3 tree hierarchies

.rd3t-tree-container {
  width: 100%;
  height: 100%;
}

.rd3t-grabbable {
  cursor: move; /* fallback if grab cursor is unsupported */
  cursor: grab;
  cursor: -moz-grab;
  cursor: -webkit-grab;
}
.rd3t-grabbable:active {
    cursor: grabbing;
    cursor: -moz-grabbing;
    cursor: -webkit-grabbing;
}