I followed this article from Sitepoint
How to Build an Auto-Expanding Textarea jQuery Plugin, Part 2 SitePoint

and everything is working fine until I added padding:3px to my textarea. In Google Chrome, now everything I type seems to auto expand the box no matter what is the height.

Example: Edit this Fiddle - jsFiddle - Online Editor for the Web (JavaScript, MooTools, jQuery, Prototype, YUI, Glow and Dojo, HTML, CSS)

Can anyone shed some light? Thanks in advanced.