Question
How to preserve vertical text in 'Fixed-Format' ePubs?
I'm exporting a textbook as a Fixed-Format ePub via InDesign 2020 but noticed vertical text get exported horizontally instead! Here is an example of what I mean:

Here's how it should look like:

Does anyone know how I can preserve the text rotation? There are hundreds of examples of this issue in the book. Would there be a 'global' setting/CSS to resolve this?
