jquery/jquery-mobile — pull request #5181 by jschulte (2012-10-16 18:23:00+00:00)
Title: Resolve input=number width issue for Android 4.1

Added CSS to resolve the issue as suggested by Todd Parker and Jasper DeGroot:

input[type=number]::-webkit-outer-spin-button { margin: 0; }

JS Bin example of the fix:

http://jsbin.com/oguzef/1

Tested in iOS 5, iOS 6, Android 2.3, Android 4.1, Chrome 22.0.1229.94, Firefox 16.0.1