%% 
%%  A DANTE-Edition example
%% 
%%  Example 23-04-3 on page 356.
%% 
%%  Copyright (C) 2011 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
%% 
\documentclass[]{article}
\pagestyle{empty}
\setlength\textwidth{375.57637pt}
\setlength\parindent{0pt}

\usepackage{pst-fr3d}  \psset{doublesep=0.1}

\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}