Header is smaller and sticks to the top of the browser window.

# From

![image](https://cloud.githubusercontent.com/assets/573215/3914254/52885c4a-2343-11e4-99cd-c60dbde47663.png)

# To

![image](https://cloud.githubusercontent.com/assets/573215/3914267/6ed7073e-2343-11e4-91ba-ae88c285960a.png)