View 1 xhtml validation 2 document type definition 3 html syntax 4 character encoding 5 web design standards 6 w3c validator 7 wellformed xhtml 8 quality web pages text PowerPoint (PPT) presentations online in SlideServe. SlideServe has a very huge collection of 1 xhtml validation 2 document type definition 3 html syntax 4 character encoding 5 web design standards 6 w3c validator 7 wellformed xhtml 8 quality web pages text PowerPoint presentations. You can view or download 1 xhtml validation 2 document type definition 3 html syntax 4 character encoding 5 web design standards 6 w3c validator 7 wellformed xhtml 8 quality web pages text presentations for your school assignment or business presentation. Browse for the presentations on every topic that you want.