making some adjustments to posts so they don't break at narrow widths

so instead of this 

![screenshot 2014-12-03 16 15 26](https://cloud.githubusercontent.com/assets/1681963/5292051/2bc962a4-7b2a-11e4-8aa5-0c2b22465600.png)

it does this 

![screenshot 2014-12-03 16 16 07](https://cloud.githubusercontent.com/assets/1681963/5292053/30690d32-7b2a-11e4-98bc-a58e36c2470b.png)