Touch ui is adding additional space below footer compared to classic .
I noticed that touch ui has additional divs present compared to classic ui . Please let me know as how this could resolved.
The region marked in yellow in below snapshot for footer is the additional space
The additional div that is getting added is
I would say, ignore this if this is because of DOM classes you mentioned in the screenshot.
This is the edit view and space may be required to differentiate components, if you will fix this space, it may end up creating other issues.
If you still see the issue in wcm disabled mode, just check the DOM and let us know.
Could you please check in we retail site, whether the same issue is coming there as well?