CSS Class

There is a CSS class that I saw on one of the demo's a few weeks back and can't remember what it is or the layout that I saw it on.

Basically what it does is center up the module or row when it goes mobile.

I want it to use it on Footer 12, when you go mobile, that entire footer section stays aligned to the left... would like to get most if not all of the sections/rows in Footer 12 to be aligned center. I could do the CSS coding myself and do my own classes but why reinvent the wheel when you already did it.