One of the best creations of Dave Gamache is Skeleton css.
I used it for this website and it’s very useful and easy to use.
Skeleton is a small collection of CSS & JS files that can help you rapidly develop sites that look beautiful at any size, be it a 17″ laptop screen or an iPhone.Skeleton is built on three core principles:
Responsive Grid Down To Mobile
Skeleton has a familiar, lightweight 960 grid as its base, but elegantly scales down to downsized browser windows, tablets, mobile phones (in landscape and portrait). Try to resize this page!
Fast to Start
Skeleton is a tool for rapid development. Get started fast with CSS best practices, a well-structured grid that makes mobile consideration easy, an organized file structure and super basic UI elements like lightly styled forms, buttons, tabs and more.
Style Agnostic
Skeleton is not a UI framework. It’s a development kit that provides the most basic styles as a foundation, but is ready to adopt whatever your design or style is.
I suggest to everybody to try it and I’m sure you will start to use it for all your next projects.
You can find more information about Skeleton going to its main website.
And take a look to the website of his creator as well, Dave Gamache.