Conversions: Increase font-size to 1.5em

I added style.css in the share directory of the conversions so that I can make the output prettier.

Old:
![64f3c65a-e1dd-11e3-89bd-14fbfd64541c](https://cloud.githubusercontent.com/assets/81969/3176998/df2a45d4-ec0a-11e3-8fd7-d8d3ce5c96f7.png)

New:
![screen shot 2014-06-04 at 1 08 19 pm](https://cloud.githubusercontent.com/assets/81969/3177000/e3214890-ec0a-11e3-8010-ef759cbb8e5c.png)