\Configure{chapter}{}{}
{\IgnorePar\EndP\HCode{<h2 class="chapterHead">}
\if@mainmatter \chaptername \ \thechapter\HCode{<br\xml:empty>}\fi}
{\HCode{</h2>}\IgnoreIndent}
\Configure{chapterTITLE+}{\if@mainmatter\thechapter\space\fi#1}
\renewcommand\thechapter {\if@mainmatter\@arabic\c@chapter\fi}
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