http://demos.jeweltheme.com/mama/default/index.html those url goes on same page not different. We haven’t find any issue about you’r talking. Maybe something conflicting with your theme when you are working offline.
Make sure about it. You’r working offline and we don’t know what’s bother you. In offline finish your work and upload in a live server properly, after that if still there is any problem like that then we will talk about it.