I cannot figure out why either. I’ve tested on all my own devices and it is completely fine.
I’ve read through some of the comments on here and it says that it could be the scroll-bar and it shouldn’t matter.
Google is warning users that it is not mobile friendly though and I’ve noticed since install people I’ve lost a little traffic.
I really love the look of the blog now and do not regret my purchase but I’m afraid I might have to refund if I cannot figure this out.