[pepak]

Originally Posted by jackie_w

Serif: to customise your standard body text the normal way would be to do nothing more than selecting your chosen serif font from the [Aa] menu (rather than Publisher Default). Avoid using the CSS property font-family in your body{...} and standard paragraph classes. Specifically avoid using font-family:serif everywhere as this will force use of built-in Georgia (at least it used to).

I see. So I completely remove any Serif declaration and use a custom font instead. As long as I don't need a custom serif font for each book (which I don't), this should work fine.

Once I get it done (should be simple enough), there will probably be one more issue and that's small caps, but I will cross that bridge once I have everything else running.

Sans-serif: Use simple font-family:sans-serif in your epub's internal CSS file. You will also need to find a way to inject the following CSS into every epub CSS file.

Already solved in my book-building process.

FYI, I'll just mention another possible approach but you may not want to do this kind of experiment yet, so I won't go into detail here. It's possible to "fool" the Kobo into using your chosen sideloaded serif and sans-serif fonts both in the books you read when Publisher Default is chosen plus throughout the whole GUI. This method is particularly suited to those whose native language is not well-handled by the built-in GUI system fonts Georgia and Avenir, e.g. Cyrillic, Vietnamese.

Thanks for the info. For the moment, I will avoid this method, though, as the built-in fonts work fine for me.