Presenting Content is a new HTML 5 element that defines an important section of a document. It can be used within articles, in the header or footer, or to define navigation. The div tag would continue to be used for those divisions within the page where the division hasn’t been allocated a more specific tag to represent that particular content. Tag Description Represents the header of a document or a section. This allows for a tag oriented CSS which might be cleaner and allow for more flexibility. A perfect example of the use of a div tag is to designate a navigation list: table.categorylist td This one targets td only inside table with class of categorylist. The difference is that a span can be inline by default, a div by default is a block object. Represents a section of a document, such as header, footer etc.