I used to manage a website. I used Front Page but I also wrote html routines, and I wrote css. I closed the website five years ago and I haven't written css since. I could get into it again, of course, but I know nothing about css for e-pub. Nor do I know how to format a css style sheet or how to attach it.
So I am starting from scratch. I would be happy to find a good tutorial. I thought it would be easy to create an e-pub using Calibre, and it is unless you need to embed files.
I will have to research this, and I will take my time because it is not an urgent matter. I thought I could do the whole thing just by downloading some software.
If someone can direct me toward a good tutorial or the equivalent, it would be much appreciated. I would enjoy learning it.