Ui-Router without explicitly set z dimension reorders after transition

Hi Everyone,

Ok so if you are using ui-router and have a page setup like so:

``` html

```

The first time the page loads it will be purple, but after a transition it will be black. If you do this however:

``` html

```

It works fine. Figuring that order matters in famous, I figured it was a bug worth sharing (with the easy work around if anyone else gets stuck)