%%
%% The LaTeX Companion, 3ed
%%
%% Example 3-5-37 on page I-227 in "parnotes --- Present the notes inside the galley".
%%
%% 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{138.0pt}


  \hyphenation{par-note}

  \setlength\textheight{14.5\baselineskip}


%StartShownPreambleCommands
\usepackage[multiple]{footmisc} \usepackage{xcolor}
\usepackage[indentafter,roman]{parnotes}
\renewcommand\parnotefmt[1]{\centerline{\colorbox
    {black!5}{\parbox{0.82\columnwidth}%
                 {\footnotesize\itshape\noindent #1}}}}
%StopShownPreambleCommands

\begin{document}
\begin{autopn}
  This is simple text.\parnote{The first parnote.}
  This is simple text.\parnote{The second parnote with
    more than one line of text to show the formatting
    in the note section.}\footnote{Consecutive!}

  Another\parnote{Note shows up immediately.} paragraph.

  Some more text with a mark\parnote[\textdagger]{A note
    with custom mark.} and text for two lines.
\end{autopn}
\end{document}