\documentclass[11pt]{letter}
\usepackage{amsmath,amssymb,amsfonts} % Typical maths resource packages
\usepackage{graphics}                 % Packages to allow inclusion of graphics
\usepackage{color}                    % For creating coloured text and background
\oddsidemargin 1cm
\textwidth 14cm
\textheight 21cm
\topmargin -1.5cm
\parskip 0.1cm
\parindent 0cm

\address{
{\bf University of The Outer Rim}\\
{\small\em Professor  van Helsing}\\
{\small\em  200 College Street}\\
{\small\em The Outer Rim}\\
{\small\em  Far Side} \\
{\small\em Department of Paranormal}\\
{\small\em Email zazahels@ecf.para.or}}

\date{{\small\em October 31, 1899}}

\normalsize
\signature{van Helsing}

\begin{document}
\pagecolor{magenta}
\begin{letter}{Count V. Dracul, \\
          Castle Bran, \\
           Bran,  \\
Brasov,\\
  Transylvania}


\rm
\opening{Dear  Vlad,}
\begin{center}
{\bf  Repairs to stone boxes}
\end{center} \rm
The $2m\times 0.7m\times 0.7m$ stone boxes are now complete
and they are being shipped soon. The new model sliding
lids have been fitted, with a video unit
on the inside.




 \closing{Yours sincerely}


\end{letter}
\end{document}
