... move on! The HTML5 and XHTML5 DOCTYPES HTML 4/XHTML have several DOCTYPES, but HTML5/ XHTML5 have only one DOCTYPE each, as follows: HTML5: HTML5 test... the practical application of HTML5 to projects that are currently not well documented The book focuses on projects that will enhance your web sites; therefore, you will not find a history of HTML5. .. page or an entire web site to HTML5 • Create HTML5 pages that will display correctly in Internet Explorer and • Take advantage of the enhanced features in HTML5 HTML5 is the most exciting step