[Tex2002ans]

Originally Posted by Turtle91

Some devices use an algorithm for displaying pages that is similar to that scrolling - and thus the body margin would only apply to the first and last page.

This technical talk:

• ebookcraft 2019: "Pagination in the Browser: Why, What, and How" by Nellie McKesson

covered a lot of the algorithms used in devices/apps.

Many of them fake it with CSS "columns", then just shift you left/right by a chunk at a time.

(This is why some renderers, you can accidentally see leaked text from the left/right pages. Or you get strange highlighting artifacts along the edges.)

I described and linked to a little more resources in this post:

• 2020: "Kindle Previewer 3.40 - 64bit, SVG text, snap-block"