RE: Collections of web pages

Looking through, I think the 'set of web pages' definition is the best place to clarify on ePub, for example adding an example:

set of web pages

collection of web pages<https://www.w3.org/TR/WCAG21/#dfn-web-page-s> that share a common purpose and that are created by the same author, group or organization

Examples: A publication which is split across multiple Web pages...
Example: A publication which is made up of a set of web pages available at one URI in a linear order, such as an ePub document.

The last example being the addition. I put in the 'linear order' part to differentiate from the 'rendered together' part of the web page definition.

Again, I don't think it is needed for the new SCs, but it might help with how ePubs are treated in WCAG in general.

Cheers,

-Alastair