Simple Grid was created for developers who need a barebones grid. Simple Grid works well with 1140px layouts but easily adapts to any size of layout. With fluid columns, Simple Grid is responsive down to mobile.

Insane, no-nonsense CSS grid.

Minimal but Powerful: Beauter is tiny ~6KB compressed, so faster. While still packed with all the required elements.
Rapid Development: Beauter is based on BOL, an experimental Design Methodology which makes Beauter easy to mix match.
Cross Browser Responsive: Beauter is a mobile first, responsive and modifies most of the default styles to guarantee same behavior everywhere.
Open Source ♥: Beauter is available under MIT License which allows you to use, modify and contribute as you want for Free.

The classless CSS reset (perfect for Communists).
No JavaScript. No Classes. Just raw CSS.