Responsiveness question

Hello,

I found out that the responsiveness of the customizr theme acts kind of strange at one specific browser width, the left panel moves in the middle of the body and the right panel:

https://s30.postimg.org/am4xxzh4h/customizr_leftbar.jpg

This seems as a mistake because if you make the browser wider or thinner just by one px at this point, the responsiveness changes and it seems ok.

Could you please check this out if its a bug or not? It looks and feels very strange, it can also cause a very strange look on tablets 🙂

thanks!