\documentclass{article}
\title{Sample Document}
\author{Test Author}
\begin{document}
\maketitle

\section{Introduction}
This is the first paragraph of the introduction.

\section{Background}
Some background information here with \textbf{bold} and \textit{italic} text.

\begin{itemize}
\item First item in unordered list
\item Second item in unordered list
\end{itemize}

\begin{enumerate}
\item First item in ordered list
\item Second item in ordered list
\end{enumerate}

\subsection{Nested Section}
A subsection with more content.

\end{document}