\usepackage{book}

\newcommand{\fontsize}[2]{}
\newcommand{\bs}{\textbackslash}
\newcommand{\vfill}{}
\newcommand{\hrulefill}{}
\newcommand{\null}{}
\def\path{\begingroup\urlstyle{tt}\Url}
\renewcommand{\framebox}[1]{#1}

\makeatletter
\RenewcommandHtml{\@boxed}[1]{{#1}}
\makeatother
