HTML5 Guidelines for Web Developers: Structure and Semantics for Documents | 2.1 Header with "header" and "hgroup" | InformITBoth the previously mentioned MAMA survey conducted by Opera and Google's study of Web Authoring Statistics of 2005 (http://code.google.com/webstats) conclude that it was common practice at that time to determine the page structure of web sites with the class or id attribute. Frequently used attribute values were footer, content, menu, title, header, top, main, and nav, and it therefore made sense
