Sub Articulo 50.1

You are welcome to a package I wrote that is based on code.sty from CT
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The vcode.sty package can put a box around a verbatim listing, and als
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provides some control of the fontsize and alignment of the list, and l
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numbers and so on. The syntax is like this:
\begin{vcode}{fnxb}
blah blah
\end{vcode}
The letters in the argument say make a frame, put line numbers on, use 
 the
extra-small font, and align the whole thing with the bottom line.  The
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are several other arguments.
There is a companion vcode.hlx for use with Otfried Cheong's Hyperlate
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package.  Not many of the arguments are implemented for html, however.
You can get the package from ftp://top.gso.uri.edu/pub/tex, where you'
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find vcode.dtx and vcode.ins.