Video loader

css3 loader for videos

![image](https://cloud.githubusercontent.com/assets/960919/3373364/f7c11fb6-fbb2-11e3-9fd7-313f0ab4ddb7.png)

intentionally not remified as doing so crashes chrome for some reason...
Pseudo elements don't animate in WebKits shipped prior early 2013. You might want to add HTML elements instead to make sure it works on all mobiles / tablets.