google/web-starter-kit — pull request #83 by webdesignberlin (2014-06-19 21:18:56+00:00)
Title: Update components.css | remove deprecated hgroup

Remove hgroup from html5 display definitions, cause hgroup is deprecated and deleted from the w3c specs. even if it is still listed in the WHATWG. http://www.w3.org/wiki/HTML/Elements/hgroup