6.1 article

<..configure html4 article..>+
 <.article,report,book options 1, 2, 3.>
 \:CheckOption{1}     \if:Option
   <.toc article,report options 1.>
 \fi
 <.config book-report-article.>
 <.config report / article 4.0t.>
 \:CheckOption{1} \if:Option
 \else
    \:CheckOption{2} \if:Option \else
       \:CheckOption{3} \if:Option \else
          \:CheckOption{4} \if:Option \else
             \:CheckOption{5} \if:Option \else
                \:CheckOption{6} \if:Option \else
                   \:CheckOption{7} \if:Option \else
                   \fi
                \fi
             \fi
          \fi
       \fi
    \fi
    \if:Option
        \Css{.subsectionToc,    .likesubsectionToc    {margin-left:2em;}}
        \Css{.subsubsectionToc, .likesubsubsectionToc {margin-left:4em;}}
    \fi
 \fi
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<..config report / article 4.0t..>
 \ConfigureEnv{abstract}
    {\IgnorePar\EndP
     \HCode{<div\Hnewline class="abstract"\Hnewline>}\par\ShowPar}
    {\ifvmode \IgnorePar\fi \EndP\HCode{</div>}}{}{}
 \Css{.abstract p {margin-left:5\%; margin-right:5\%;}}
 \Css{div.abstract {width:100\%;}}
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