%%
%% The LaTeX Companion, 3ed
%%
%% Example 8-2-19 on page I-598 in "Overview about the most important keys".
%%
%% 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{135.0pt}

%StartShownPreambleCommands
\usepackage{xcolor,adjustbox}
%StopShownPreambleCommands

\begin{document}
L\_\adjustbox{padding=4,frame}{\colorbox{gray}{\LaTeX}}\_%
M\_\adjustbox{padding*=3 6,frame,margin*=0 10 0 0}
             {\colorbox{gray}{\LaTeX}}%
\llap{\color{blue}\rule{1pt}{16bp}\quad}\_R
\end{document}