V 1.2 CSS for Siiiimple

There are quite a few changes in the CSS file for Siiiimple.

Changes in v1.2: 

1. Syntax for columns changed from col to
loop, and the container syntax changed 
from grid to span.

2. Index.html has almost no content so you
can just start.

3. The container's width was changed from
1130px to 1080px.

4. The columns now only float left, and 
have 10px of padding. 

5. There is now only one media break point 
set at 530px.