Hi Nasser,
>
> It is because it is trying to copy the style file nma.css to the output
> directory!
>
> And so ofcourse there is no folder /styles/css/ on the Linux disk. This is
> meant only for the web server to use from its root public_html.
>
In this case, you can use this configuration instead:
\Configure{@HEAD}{<link href='/styles/css/nma.css' rel='stylesheet'
type='text/css' />}
> Why is make4ht trying to copy to the output_dir what is defined in
> \Configure{AddCss}?
Because that file is registered, and all registered files are copied
to the output directory.
Best regards,
Michal