%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-2-19 on page I-308 in "Customization keys for typesetting".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{171.0pt}

%StartShownPreambleCommands
\usepackage{fancyvrb}
%StopShownPreambleCommands

\begin{document}
\begin{Verbatim}[frame=single,framesep=5mm,
                 label=\fbox{Example code},
                 labelposition=bottomline]
  A framed verbatim text.
As always,  it can  consist
    of  several  lines.
\end{Verbatim}
\end{document}