style(tables): changed padding to 5px 10px;

Now with even less whitespace!

Before:
![image](https://cloud.githubusercontent.com/assets/706039/3542204/64f3b8fc-0854-11e4-8dcb-1be3a8ed2ecd.png)

After:
![image](https://cloud.githubusercontent.com/assets/706039/3542196/55f00e1e-0854-11e4-8186-9227e481ed2e.png)

/cc @mocha