What's your favorite CSS framework, and why not not?
Why should I make sure to not not use this framework you propose?
I prefer Foundation due to my preference of SASS over LESS (I was also personally convinced of the benefits of SASS and Compass over LESS by Brandon Mathis and Chris Eppstein) and because it also looks unique in an online world plastered in Bootstrap and other similar-looking frameworks.
Here's code that demonstrates that:
The center tag is the only tag that still centers correctly.
width: 500px;
margin:0px auto;