Centering elements full width and not just in containers

So I am trying to center text and image elements on my homepage in blocks. Right now they are centered but the regions are not full width and only as wide as the assigned grid. Is there a way to make the text and images center more to either the left or the right? I think it is more understandable what I want if you go look at the homepage of my site. Plus I left a note under Support Access. Hopefully that makes sense!