Show image only in first story on mobile in Cif container

## Before

![screen shot 2014-03-11 at 10 57 29](https://f.cloud.github.com/assets/85783/2384396/137cdf96-a90c-11e3-8f58-b946fbb73965.PNG)


## After

![screen shot 2014-03-11 at 10 58 07](https://f.cloud.github.com/assets/85783/2384399/195f5f42-a90c-11e3-80fc-085d8f5664cc.PNG)

![ ](http://media2.giphy.com/media/AD52cvcgIblfy/200.gif)