A common use offline … is also kind of a sectioning element If you will mention it as false then it will be mandatory to put Botton section at every content page. " For this purpose, in this part of the HTML vs HTML5 article, we’ll explain the significant improvements worth noticing: Using these elements gives more semantic meaning to your pages, allowing computer programs to better understand your content.. The following heading tags inside the same section need to be relative to this. Designers frequently use this element when marking up a distinct section of the page—an entire section that could be moved and used on other pages or parts of the site. Tout document doit comporter une structure cohérente. The Element. and their own internal hierarchy. An article should make sense on its own and it should be possible to distribute it independently from the rest of the site. role="region" * role="article" * none: role="search"