LearnBoost/stylus — pull request #883 by jcemer (2012-11-09 19:35:59+00:00)
Title: @viewport

Add support for @viewport at-rule following the spec in http://dev.w3.org/csswg/css-device-adapt/#the-atviewport-rule

More info at http://dev.opera.com/articles/view/an-introduction-to-meta-viewport-and-viewport