[BISERVER-11287] - Settings buttons do not have enough distance.
* Resetting chrome only user-agent stylesheet rule:  button { margin:2px; }
* Not having a margin reset causes different browsers to show different margins
* In this case, Chrome had enough distance, due to the Chrome only rule, while all, or almost all other browsers did not.
Merge pull request #248 from webdetails/BISERVER-11287

[BISERVER-11287] - Settings buttons do not have enough distance.