%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-1-5 on page I-257 in "Customizing the \protect \nxLenv {description} list environment".
%%
%% 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{147.0pt}
%StartShownPreambleCommands
\renewcommand\descriptionlabel[1]%
{\hspace{\labelsep}\textsf{\bfseries #1}}
%StopShownPreambleCommands
\begin{document}
\begin{description}
\item[An item] Its description with enough text
to fill more than one line in the example.
\item[Another item] Now just two lines of text.
\end{description}
\end{document}