Specifying thickness of lines in graphviz [duplicate]

Question

Is it possible to specify the thickness of lines (for edges and nodes) in Graphviz?

I've looked at the documentation about attributes, but I can't seem to find what I'm looking for. I'm surprised if it's not possible though.

Answer 1

Is penwidth what you are looking for?

Specifies the width of the pen, in points, used to draw lines and curves, including the boundaries of edges and clusters. The value is inherited by subclusters. It has no effect on text.