<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/WebSite>
<http://www.codingforums.com/html-and-css/225168-having-problems-centering-web-page-within-browser-s.html?s=648fb4701c1a520f7d80e1e2ede4df5b>