Foundation is a rock-solid, responsive framework for rapidly prototyping and iterating into production code. It includes a 12-column, future-friendly grid and tons of great tools and elements that'll get you up and running in no time.
Mobile First Foundation is a fork that brings the Mobile First development approach to the Foundation framework. With Mobile First Foundation, you'll be building your site's styles for smallest devices first, giving lower powered devices less to load.
Mobile First Foundation is currently based on Foundation 2.2. I'll try to keep it inline with the latest version as best as I can.
Foundation is MIT-licensed and absolutely free to use. Mobile First Foundation is maintained by Adam Fairhead of Fairhead Creative.
Fairhead Creative is a design agency that creates Websites and Branding for people just like you.
Foundation was made by ZURB, an interaction design and design strategy firm in Campbell, CA.