%% 
%%  Ein Beispiel der DANTE-Edition
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%%  7. Auflage
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%%  Beispiel 22-04-3 auf Seite 381.
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%%  Copyright (C) 2016 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) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-fr3d}  \psset{doublesep=0.1}
%StopShownPreambleCommands
\begin{document}
\PstFrameBoxThreeD[FrameBoxThreeDColorHSB=0.1 0.3 0.5]{Button}
\PstFrameBoxThreeD[FrameBoxThreeDColorHSB=0.6 0.3 0.5]{Button}
\PstFrameBoxThreeD[FrameBoxThreeDColorHSB=0.4 0.1 0.5]{\Huge$\frac{1}{\sqrt{3}}$}
\PstFrameBoxThreeD[FrameBoxThreeDColorHSB=0.9 0.5 0.5]{%
  \psovalbox[fillstyle=solid,fillcolor=yellow]{Button}}
\PstFrameBoxThreeD[FrameBoxThreeDColorHSB=0.4 0.7 0.2]{%
  \PstFrameBoxThreeD[FrameBoxThreeDColorHSB=0.4 0.7 0.5]{%
    \PstFrameBoxThreeD[FrameBoxThreeDColorHSB=0.4 0.7 0.8]{Button}}}%
\end{document}