%% 
%%  An UIT Edition example
%%  
%%  1st edition
%% 
%%  Example 02-06-1 on page 33.
%% 
%%  Copyright (C) 2012 Herbert Voss
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 
%% 
%% ==== 
% Show page(s) 2,4

\documentclass[size=12pt,style=husky,british]{exapd}
\pagestyle{empty}
\usepackage[utf8]{inputenc}
%\StartShownPreambleCommands
% Optionen: size=12pt,style=husky,british
%\StopShownPreambleCommands
\begin{document}
\section{Two-column mode}

\begin{slide}{Example}
\twocolumn{%
  \onslide{1-}{%
    The history of \TeX\ started in the last century. The first codes were introduced
    in late 1970 by \textsc{Donald Knuth}. Not that many software packages can boast
    that they have reached an age by which others are retired ... :-)}
}{%
  \onslide{2-}{\rule{20mm}{25mm}\put(-43,20){{\color{white}\TeX}}}~%
  \onslide{3}{{\color{red}\rule{20mm}{40mm}}\put(-43,20){\LaTeX}}%
}
\end{slide}
\end{document}