nothing to do re adjustbox package, it seems. closing.

From https://tex.stackexchange.com/questions/463080/using-adjustbox-in-tex4ht-does-not-work-is-this-known-limitation

This MWE

%-----------------------------
\documentclass[12pt]{article}
\usepackage{graphicx}
\usepackage[export]{adjustbox}

\begin{document}

\begin{enumerate}
\item A
\item B
\item C \includegraphics[width=2cm, valign= c]{example-image-a}
\item D
\item E
\end{enumerate}
\end{document}
%-----------------------------

Produces correct alignment in pdf, but not in HTML after doing make4ht foo.tex

Screen shot of HTML and PDF side by side at above link.

Is adjust box supposed to work with tex4ht? If not, is it possible to add support for it if that is not too hard?

TL 2018

Thanks
--Nasser