\Preamble{ext=htm,pic-align}

\begin{document}
\EndPreamble

\catcode`\:=11 \catcode`\@=11

\Configure{HtmlPar}
  {\EndP\HCode{<!--l. \the\inputlineno-->%
<p \csname a:!P\endcsname
         class="no\ifHCond par\else indent\fi" \a:LRdir>}}
  {\EndP\HCode{<!--l. \the\inputlineno-->%
<p \csname a:!P\endcsname
        class="\ifdim \parindent=\z@ no\fi indent" \a:LRdir>}}
  {{\Tg</p>}}
  {{\Tg</p>}}%

\renewenvironment{multicols}[1]{\IgnorePar\EndP%
\HCode{<div class="newspaper}#1\HCode{">}
\expandafter\ifx\csname .newspaper#1\endcsname\relax%
\Css{.newspaper#1 p:first-child { margin-top: 0em; }}
\Css{.newspaper#1 {
   -moz-column-count:#1; /* Firefox */
   -webkit-column-count:#1; /* Safari and Chrome */
   column-count:#1;
   -moz-column-gap:10px; /* Firefox */
   -webkit-column-gap:10px; /* Safari and Chrome */
   column-gap:10px;
   -moz-column-rule:1px outset \#F8F8F8 ; /* Firefox */
   -webkit-column-rule:1px outset \#000000; /* Safari and Chrome */
   column-rule:1px outset \#000000;
}}
\expandafter\gdef\csname .newspaper#1\endcsname{1}%
\fi%
\ShowPar\par}
{\EndP\HCode{</div>}}

\ConfigureEnv{multicols}
   {\par\IgnorePar\EndP%
    \gHAdvance\MultiCols by 1\relax}
   {\ifvmode\IgnorePar\fi\EndP}
   {}{}


\endinput