Solved Extend Padding full column width (or better way?)

I've setup a page with flex, amongst other things to get the layout looking like the proof. It's basically 6 boxes, in a 2x3 layout that the user chooses one of, and I had to get a little creative with the css and html coding using the code modules to get it to look like the proof on the desktop width version.

The idea is that the 'choose' part of the box is a button that would take the user to the next step in this quiz/funnel/etc. The problem with the layout is that the way I've gone about simply adding padding to the right of the module is that making it responsive is a crazy tedious process.

IS there a better way of initially setting it up?

It begins to break at the 1090 width and smaller mark...

http://www2.pcdc.net/~vscr/testing/find-my-coffee-brewmethod/

 

This worked perfeclty, thank you!