I guess I just didn’t play around enough (or was doing so in too-complex an environment) because hacking around on codepen I think I just stumbled on an almost-solution (after re-reading https://css-tricks.com/absolute-positioning-inside-relative-positioning/). Here’s a new pen that solves the problem for the most part using absolute positioning within the containing div: http://codepen.io/jkj/pen/eFwKL
The only issue I have with that solution is the
right: 30%; to line up the stock count. Ideally, I would want that div to move with the customer info one (i.e not also require a
top: 0 and not require the
right: 30% but instead just float correctly). I think I am one step closer to the optimal solution however.