Issue 1: Nested Flexs with IE 11 tends to cause width issue, this was causing a problem with the Month/Year Selection Example image of just the stock repo site showing the problem in IE 11, I added a flex-fix class and just passed it into that specific spot because just trying to avoid anything overly complex because there isn't a consistent way of fixing this issue.

Issue 2: IE 11 does not always respect heights well with certain elements, the styling change from absolute and pushing it right to relative and just pulling in the margin is a much more consistent way of getting this affect.

Minor Issue: I noticed some duplicate class names in a file and fixed them, flex was used multiple times.