\Configure{mathdemo}
{\ifvmode \IgnorePar\fi \EndP
\HCode{<!--l. \the\inputlineno--><table class="mathdemo">}}
{\HCode{</table>}\par\ShowPar}
{\HCode{<tr>}}
{\HCode{</tr>}}
{\HCode{<td>}}
{\HCode{</td>}}
\Css{table.mathdemo{margin-left:2em}}
\Configure{longdisplaymathdemo}
{\ifvmode \IgnorePar\fi \EndP
\HCode{<!--l. \the\inputlineno--><table class="longdisplaymathdemo">}}
{\HCode{</table>}\par\ShowPar}
{\HCode{<tr>}}
{\HCode{</tr>}}
{\HCode{<td>}}
{\HCode{</td>}}
\Css{table.longdisplaymathdemo{margin-left:2em}}
\Configure{longmathdemo}
{\ifvmode \IgnorePar\fi \EndP
\HCode{<!--l. \the\inputlineno--><table class="longmathdemo">}}
{\HCode{</table>}\par\ShowPar}
{\HCode{<tr>}}
{\HCode{</tr>}}
{\HCode{<td>}}
{\HCode{</td>}}
\Css{table.longmathdemo{margin-left:2em}}
\Configure{displaymathdemo}
{\ifvmode \IgnorePar\fi \EndP
\HCode{<!--l. \the\inputlineno--><table class="displaymathdemo">}}
{\HCode{</table>}\par\ShowPar}
{\HCode{<tr>}}
{\HCode{</tr>}}
{\HCode{<td>}}
{\HCode{</td>}}
\Css{table.displaymathdemo{margin-left:2em}}
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