\documentclass[orientation=landscape,size=a1,scale=1.2]{lh-poster}
%\documentclass[inverse,orientation=landscape,size=a1,scale=1.2]{lh-poster}
%\documentclass[orientation=portrait,size=a1,scale=1.2]{lh-poster}
%\documentclass[inverse,orientation=portrait,size=a1,scale=1.2]{lh-poster}

\title{A Simple Poster Example}
\subtitle{}

\institute[The University of Sheffield]
{Department of Computer Science, The University of Sheffield, Sheffield, UK}
\author[A.D. Brucker]{Achim D. Brucker\\[0.2em]
    \texttt{\small\href{mailto:"Achim D. Brucker"
    <a.brucker@sheffield.ac.uk>}{a.brucker@sheffield.ac.uk}}
}

% \setbeamertemplate{rhlogo}{\includegraphics[width=6cm]{partnerlogo}}
\begin{document}
\begin{frame}[t]
  \begin{columns}[t]
    \begin{column}{.31\textwidth}
      \begin{block}{Test Title}
         A regular box with an itemize list
         \begin{itemize}
           \item First item.
           \item Second item.
           \item Third item.
         \end{itemize}
      \end{block}
      \begin{block}{Test Title}
       Some text \ldots
      \end{block}
    \end{column}
    \begin{column}{.31\textwidth}
      \begin{alertblock}{Test Title}
      \end{alertblock}
      \begin{block}{Test Title}
      \end{block}
    \end{column}
    \begin{column}[t]{.31\textwidth}
      \begin{example}{Test Title (Example)}
      \end{example}
      \begin{block}{Test Title}
      \end{block}
    \end{column}
    \end{columns}
\end{frame}
\end{document}