hese markups are
currently only available via the cairo and svg renderers.
The horizontal and vertical rules </EM>(<TT>&lt;HR&gt;</TT> and <TT>&lt;VR&gt;</TT>)
<EM>are only available in versions later than 8 July 2011.  </EM>
<P>
<B>NOTE:</B><EM>For releases later than 9 September 2014, one can use </EM><TT>shape=plain</TT> <EM>so that the size
of the node is totally determined by the label. Otherwise, the node's margin, width and height values may cause the
node to be larger, so that edges are clipped away