% General preamble
\usepackage[utf8x]{inputenc}
\usepackage{ucs}

\usepackage{fixltx2e} 			% Typographical corrections to the LaTeX defaults
\usepackage{graphicx}			% Enable support for images
\usepackage{color}			% Enable support for colors


% Macros for internal use
\newcommand{\codesize}{\footnotesize}
\newcommand{\code}[1]{\colorbox{black}{\makebox[\textwidth-3.5em]{\color{white}{\hspace{0.7em}\texttt{\codesize #1}\hfill}}} \\}


% Macros for users
\renewcommand{\dot}[1]{\pause\item #1 \\}
\newcommand{\cmd}[2]{\pause\item #1 \\ \code{#2} \vspace{0.7em}}
\newcommand{\link}[2]{\pause\item #1 \\ \href{#2}{\codesize\texttt{#2}} \vspace{0.7em}}
\newcommand{\duodot}[2]{\dot{\makebox[\textwidth-5em]{#1 \hfill #2}}}