In embedHTML(), it would be very usefull to apply ONLY Word style to elements defined in 'wordStyles' option, and NOT mix HTML + Word styles.
The result could be ugly, for example with a variable font size even if we force the size in the Word style, etc.
The 'strictWordStyles' is not an option, as it prevent all the (great) job you already made to convert everything as smooth as possible in Word (font families, etc.). And we lose the CSS formatting ("style='…'") in HTML source.
So I propose to add an option to prevent styles mixing between Word and HTML. The call function should be something like this:
$docx->embedHTML($html, [ 'strictWordStyles' => false, # we want all the great stuffs you made, 'wordStyles' => [ '<table>' => 'MyCustomTableStyle', '<h1>' => 'MyHTML_H1' ], 'forceWordStyle' => true # New option to add? ]);