Rob, I'm creating a fixed layout ePub, is there a way to convert the pt size to em size in inDesign?
I'm considering a 16pt typeface because my understanding is that Kindle has a default 16 pixel type size,
but I want to make sure that it will be flexible for html standards.
FXL with CS6 for Kindle?
INdesign CC creating ePubs for varios publishers
I've branched your question to a new discussion and moved it to the InDesign EPUB forum.
In the future please create a new topic for a new question. It makes it much easier to get help.