That was amazing–in one fell swoop it was fixed. Thank you very much.
Thank you so much! That got it fixed 🙂
P.S. The blank spaces appear on various pages, on slightly different places. For instance:
(1) Space above footer: http://wp.lancs.ac.uk/prospr/
(2) Space above comment: http://wp.lancs.ac.uk/prospr/2019/01/07/test-title/
I initially thought that the problem could be caused by the comment area. Yet, I disabled the comments, and the spaces remained.