I'm completely new to the html and css so if somebody could help me I will be very happy.
I have some ebooks which not let me change the font on my ereader. I think it is because there is some embedded fonts. I suppose there must be a way to change something on the stylsheet, etc. on Sigil to allow me to read those books with the font I like on the reader.
I will like to know what is the coding difference between the books who have embedded fonts (so you can't change the font on the reader as you like) and the other who let this choice possible? I mean where on the css code and what exactly.
P.S. I don't really understand the utility of embedded fonts on the ebooks as when I'm reading them on my Prs-t1 choosing the font "original" the fonts are always the same (I mean not the one who is embedded to the code) on all books?