\documentstyle{article}
\title{Essential \LaTeX}
\author{Jon Warbrick}
\input tex4ht.sty \Preamble{html,fonts}
\begin{document}
\EndPreamble
\maketitle
\def\HR{\HCode{<HR>}}
\HR====== verse
\begin{verse}
Gertjan Klein\\
Postbus 23656
\end{verse}
\HR====== quote
\begin{quote}
The buck stops here.
The buck stops here.
\end{quote}
\HR====== flushleft/flushright
We can stop \LaTeX\ from justifying each line to both the
left and the right margins.
\begin{flushright}
The {\tt flushright} environment is\\
used for text with an even right margin\\
and a ragged left margin.
\end{flushright}
\begin{flushleft}
and the {\tt flushleft} environment is\\
used for text with an even left margin\\
and a ragged right margin.
\end{flushleft}
\HR====== quote center/flushleft/flushright
\begin{quote}
The buck stops here. The buck stops here. The buck stops here.
The buck stops here.
\begin{center}1\\123\\12345\end{center}
\begin{flushleft}1\\123\\12345\end{flushleft}
\begin{flushright}1\\123\\12345\end{flushright}
\end{quote}
\HR====== quote center/flushleft/flushright par
\begin{quote}
The buck stops here. The buck stops here. The buck stops here.
The buck stops here.
\begin{center}1\\123\\12345\end{center}
\begin{flushleft}1\\123\\12345\end{flushleft}
\begin{flushright}1\\123\\12345\end{flushright}
\end{quote}
\HR====== quote tabbing
\begin{quote}\begin{tabbing}
\verb|\subsubsection| \= \verb|\subsubsection|~~~~~~~~~~ \= \kill
\verb|\chapter| \> \verb|\subsection| \> \verb|\paragraph| \\
\verb|\section| \> \verb|\subsubsection| \> \verb|\subparagraph| \\
\end{tabbing}\end{quote}
\HR====== quote verbatim
\begin{quote}\begin{verbatim}
\command{text} xx
yy
\end{verbatim}\end{quote}
\end{document}