3.18 libertine and libertine newtxmath

3.18.1 font setting

font_setting.tex

\usepackage{libertine} % Automatically loads fontspec and sets Libertine as main font 
\usepackage[libertine]{newtxmath} % Recommended for matching math support

3.18.2 full latex file

index.tex

3.18.3 commands to compile

 lualatex index.tex

 make4ht  -ulm default -a debug    index.tex "mathjax,htm"

3.18.4 PDF Output

PDF

3.18.5 HTML Output

HTML