\Configure{marginpar}
  
    {\ifvmode
  
       \IgnorePar\EndP\HCode{<div class="marginpar">}%
  
       \def\end:margp{\ifvmode \IgnorePar\fi \EndP \HCode{</div>}}%
  
       \par
  
     \else
  
       \SaveEndP
  
       \HCode{<span class="marginpar">}%
  
       \bgroup
  
          \Configure{HtmlPar}{\HCode{<br />}}{\HCode{<br />}}{}{}%
  
       \def\end:margp{\egroup\HCode{</span>}\RecallEndP}%
  
     \fi
  
    }
  
    {\end:margp}
  
 \Css{.marginpar {width:20\%; float:right; text-align:left;
  
   margin-left:auto; margin-top:0.5em; font-size:85\%;
  
   text-decoration:underline;}}
  
 \Css{.marginpar p{margin-top:0.4em; margin-bottom:0.4em;}}
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