Twitter Bootstrap http://getbootstrap.com It uses http://jquery.org and http://lesscss.org . http://getbootstrap.com/getting-started http://getbootstrap.com/getting-started/#template http://getbootstrap.com/getting-started/#examples http://getbootstrap.com/getting-started/#customizing br. Interesting examples: * http://getbootstrap.com/examples/jumbotron/ * http://getbootstrap.com/examples/offcanvas/ * http://getbootstrap.com/examples/carousel/ * http://getbootstrap.com/examples/jumbotron-narrow/ * *[X]* http://getbootstrap.com/examples/navbar-fixed-top/ ** http://getbootstrap.com/examples/sticky-footer-navbar/ A Twitter example: https://translate.twitter.com/welcome http://michaelmusgrove.com/projects/twitter-bootstrap/chapter-3-styling/overriding-core-css-in-twitter-bootstrap/ http://coding.smashingmagazine.com/2013/03/12/customizing-bootstrap/ #design - #javascript - #jquery - #css