[JimmXinu]

Originally Posted by ownedbycats

When adding a story section for an ffnet story, I copied the entire story URL including the title. Do I need it, or just the ID? (ffnet's restrictions make testing annoying. )

You can leave off the title, but you need the rest:

[https://www.fanfiction.net/s/99999/1/]
...

Originally Posted by famewolf

For the story https://www.royalroad.com/fiction/35...t-how-the-hell

Sections hidden behind a spoiler tag on the web site are overwriting text from the story making it unreadable. Example pictures attached.

That's to do with Calibre's Viewer more than FFF's output.

Viewed in my Kindle (from AZW3--same problem shows in Calibre's Viewer), in a browser or even in Calibre's own Edit book the table scrolls right-left or is squashed to fit.

If you change Calibre Viewer Preferences > Page Layout > Flow mode (instead of Page mode), the table is cut off instead of wrapped over the later text.

I don't know how you'd get Calibre Viewer to do a better job, either with it's own settings or with additional CSS.

Attached is a minimal epub containing only that chapter if anyone else would like to try.