Your markup. Your design. Our math.

The web is a responsive place, from your lithe & lively development process to your end-user’s super-tablet-multi-magic-lap-phone. You need grids that are powerful yet custom, reliable yet responsive.

Seems like a really neat Compass based responsive grid. I’m probably going to try this out soon. Mousing over the logo at the top of the page shows some nice CSS3 animations too.