Fix video spacing & caption text size

## Before

![screen shot 2014-02-26 at 17 49 34](https://f.cloud.github.com/assets/85783/2273307/805c0144-9f0e-11e3-9ae9-f1d71b5e4fab.PNG)

## After

![screen shot 2014-02-26 at 17 50 10](https://f.cloud.github.com/assets/85783/2273309/844f3f32-9f0e-11e3-9753-21d8f483c1ca.PNG)

![ ](http://media.giphy.com/media/oToYqq3jbiRry/giphy.gif)