What's this
Responder is a fast build, responsive framework built along the same lines as http://twitter.github.com/bootstrap/ and http://www.getskeleton.com but with the sole object of providing a more stripped back approach for developers who like to roll most of their own code.
To use
Simply include the media-grid into your html pages and refer to the class names for general grid layout. Then add the rest of your site styles into screen.css. That's it.
The framework provides a base stylesheet to reset and provide global starting points and a typography stylesheet that sets a sensible baseline. You don't have to use these.