\documentclass{article}
\usepackage{layers}
\begin{document}
This is on layer level 0.
\special{layer push}This is on layer level 1.
\special{layer push}This is on layer level 2.
\special{layer push}This is on layer level 3.
\special{layer pop}This is on layer level 2.
\special{layer push}This is on layer level 3.
\special{layer reset}This is on layer level 0.

This is an itemized list:
\begin{litemize}
\item First item.
\item Second item.
\item Third item.
\end{litemize}

This is an enumerated list:
\begin{lenumerate}
\item First item.
\item Second item.
\item Third item.
\end{lenumerate}

\newpage
This is on layer level 0.
\special{layer push}This is on layer level 1.
\special{layer push}This is on layer level 2.
\special{layer push}This is on layer level 3.
\special{layer pop}This is on layer level 2.
\special{layer push}This is on layer level 3.
\special{layer reset}This is on layer level 0.

\begin{layer}
This is on layer 1.
\end{layer}

The following word \uplayer{is} on layer 1.
\end{document}
