Galen Framework : Automated testing of look and feel for your responsive websites.
Layout testing seemed always a complex task. Galen Framework offers a simple solution...
HTML5 Boilerplate : HTML5 Boilerplate helps you build fast, robust, and adaptable web apps or sites. Kick-start your project with the combined knowledge and effort of 100...
csscss : csscss will parse any CSS files you give it and let you know which rulesets have duplicated declarations.
This Is Responsive : Tips, Resources and Patterns for Responsive Web Design