Page is breaking

The layout of all my portfolio pages are changing when i scroll down. (images shift to right, text shifts to the left).

Im not sure but i think one of the settings in W3 Total Cache may have caused this. I dont know how to undo it.

Does anyone know the cause of this?

Here is the link to one of my pages https://www.designssquared.co.za/portfolio/new-life-communications/