my Latex and Tex4ht cheat sheet

\Css{table {
border-collapse: collapse;
border-spacing: 0;}}
\Css{h4,h5 ,h6,h3,h2{
margin-bottom:5px;
margin-top:5px;
}}
\Css{p.indent{ text-indent: 0em; }}
\EndPreamble
3.11 how to use tikz picture with math in htlatex?
Assuming the latex file is foo2.tex
\documentclass{article}
\ifdefined\HCode
\def\pgfsysdriver{pgfsys-tex4ht.def}
\fi
\usepackage{tikz,graphicx}
%
\usetikzlibrary{trees}
\begin{document}
\begin{tikzpicture}
\node {root}
child {node {$\frac{a}{b}$}};
\end{tikzpicture}
\end{document}
The file is compiled as
htlatex foo2.tex "my.cfg,charset=utf-8" " -cunihtf -utf8"
where my.cfg is
\Preamble{xhtml,mathml}
\Configure{VERSION}{}
\Configure{DOCTYPE}{\HCode{\Hnewline}}
\Configure{HTML}{\HCode{\Hnewline}}{\HCode{\Hnewline}}
\Configure{@HEAD}{}
\Configure{@HEAD}{\HCode{\Hnewline}}
\Configure{@HEAD}{\HCode{\Hnewline}}
\Configure{@HEAD}{\HCode{\Hnewline}}
\Configure{@HEAD}{\HCode{\Hnewline}}
\Configure{@HEAD}{\HCode{\Hnewline
.MathJax_MathML {text-indent: 0;}\Hnewline
\Hnewline}}
\begin{document}
\EndPreamble
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