This one has been fixed. https://github.com/CheetahWSB/Cheetah/issues/121 it was a easy one to deal with.
You most likely will have to clear your browsers cache to see the affect on this site as you browser will have already cached the old CSS.
Ok, I cleared cache on mobile and this is what I see now, please see pic.
If images are given a fixed width then they will flow out of the box or be cut off. The CSS should set it so that the image can resized to fit the box.