.node circle{fill:#542988}.node text{font:12px sans-serif;text-shadow:0 1px 0 #fff,0 -1px 0 #fff,1px 0 0 #fff,-1px 0 0 #fff}.node:hover{cursor:pointer}.link{fill:none;stroke:#ccc;stroke-width:2.5px}.hide-nodes .node circle{display:none}.hide-labels .node text{display:none}