Are these ePubs you created yourself with InDesign?
If so, are they Reflowable text or Fixed layout ePubs?
They're ePub files created out of InDesign and yep, they're reflowable layout.
I received this error messages:
Irregular DOCTYPE: found '', expected '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'.
And a whole bunch of these warning messages:
CSS selector specifies absolute position.
Are you sure you exported your InDesign document as a Reflowable text ePub rather than a fixed layout ePub?
I assume you've used Paragraph and Character Styles on all your text and you have anchored your images?
Moving this thread to InDesign EPUB forum