I've been having an issue using TweenMax and setting the css properties of an element. It seems to be automatically picking out a z-index and applying it to the style of the element. I'm assuming this is something that was added as a quick fix for performance or css3 animation flickering as backface-visibility is also added without me requesting it (which is a whole different issue and really bogs down performance on iOS Safari).
The code is:
This ends up being:
<div class="header" style="z-index: 0; -webkit-backface-visibility: hidden; -web