 causes the node's border to be drawn as a dotted line.
<DT><A NAME=d:solid></A><TT>solid</TT>
  <DD>This style causes the node's border to be drawn as a solid line,
which is the default.
<DT><A NAME=d:bold></A><TT>bold</TT>
  <DD>This style causes the node's border to be drawn as a bold line.
See also <A HREF=attrs.html#d:penwidth>penwidth</A>.

</DL>

<P>
Additional styles may be available with a specific code generator.
<H2><A NAME=html>HTML-Like Labels</A></H2>

<B>NOTE:</B><EM>This feature is only avai