\documentclass[12pt]{article}
\usepackage{palatino,url}
\begin{document}
\section*{My first document}

This is a short example of a \LaTeX\ document I wrote on 
\today. It shows a few simple features of automated 
typesetting, including

\begin{itemize}
\item setting the default font size to 12pt;
\item specifying `article' type formatting;
\item using the Palatino typeface;
\item adding special formatting for URIs;
\item formatting a heading in `section' style;
\item using the \LaTeX\ logo;
\item generating today's date;
\item formatting a list of items;
\item centering and italicizing;
\item autonumbering the pages.
\end{itemize}

\subsection*{More information}

This example was taken from `Formatting Information',
which you can download from 
\url{http://www.ctan.org/tex-archive/info/beginlatex/}
and use as a teach-yourself guide.

\begin{center}
\textit{Have a nice day!}
\end{center}

\end{document}