guardian/frontend — pull request #4566 by ironsidevsquincy (2014-06-05 10:42:09+00:00)
Title: Page skin tweaks

* Limit nav width
* Centre banner ad

![screen shot 2014-06-05 at 11 38 32](https://cloud.githubusercontent.com/assets/74132/3186168/f5c07fb4-ec9d-11e3-8891-a3b6d46d56c9.png)