Hey Paul I assume its Paul,
I did a bad bad thing I directly edited the header.php Changed the word Menu to Chapters on line 43. 42 wasn’t the answer ??
That fixes the content on a smartphone or when the page has been shrunk to quarter width on a pc screen.. That’s half the battle. I am sure I will suffer again when the theme is updated.
I did do a refresh with the custom css. It caused a weird problem the Menu items overlapping the cover image.