Quicksand is a lightning fast, cross-browser CSS 3 & 4 selector engine for JavaScript. May 22, 2012: Quicksand version 2 has been released. Quicksand 2 makes a number of performance increases over version 1, but the most exciting part about Quicksand 2 is its support for the CSS Selectors Level 4 working draft. Selectors Level 4 brings a lot of very useful new features to CSS selectors, including