problems with users entering from mobile

[aiman.h.kallaf]

i made some changes with the forum original style so that the width of the site is 100%
the problem is when users enter from a mobile phone it really display at 100% width witch is very bad from a mobile point of view , everything get missed up . is there a way to fix this without the changing the with from 100%

 

[Itworx4me]

http://xenforo.com/community/resources/xfs-mobile-style.290/