jquery/jquery-mobile — Issue #3684: Select box (maybe not only it) margin bug
Author: kamikaze
Created: 2012-02-29 22:49:51+00:00
State: open

Correct margin in 1.0.1: http://jsfiddle.net/ha8CC/
Incorrect margin in master/1.1rc1: http://jsfiddle.net/ha8CC/1/

As I can see the problem is that ".ui-select .ui-btn" margin 0; overrides correct margin: 0.5em 5px; from simple ".ui-btn".
So when disabling magin 0 in firebug - everything looks fine.