%%
%% The LaTeX Companion, 3ed
%%
%% Example 9-3-8 on page I-668 in "Font commands versus declarations".
%%
%% 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{159.0pt}
%StartShownPreambleCommands
\newenvironment{ititemize}{\begin{itemize}%
  \normalfont\itshape\raggedright}{\end{itemize}}
%StopShownPreambleCommands

\begin{document}
\begin{ititemize}
\item This environment produces a list with italic text.
\item It is defined in terms of the \texttt{itemize}
  environment and NFSS declarations.
\end{ititemize}
\end{document}