added CSS transitions for opacity and stroke-opacity to nodes and the links between them. Hovering over nodes now results in gentler transitions.
added CSS transitions for opacity and stroke-opacity to nodes and the links between them. Hovering over nodes now results in gentler transitions.

mozilla/lightbeam,mozilla/lightbeam,Valenchak/lightbeam,Valenchak/lightbeam,mozilla/lightbeam,Valenchak/lightbeam