HTML5 Sections Reference

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It is always good to go back to the basics, even if it sounds dumb or beneath you. Here is a reference from this stackoverflow question:

Actually, you are quite right when it comes to header/footer. Here is some basic information on how each of the major HTML5 tags can/should be used (I suggest reading the full source linked at the bottom):

section - Used for grouping together thematically-related content. Sounds like a div element, but its not. The div has no semantic meaning. Before replacing all your div's with section elements, always ask yourself, "Is all of the content related?"

aside - Used for tangentially related content. Just because some content appears to the left or right of the main content isn't enough reason to use the aside element. Ask yourself if the content within the aside can be removed without reducing the meaning of the main content. Pullquotes are an example of tangentially related content.

header - There is a crucial difference between the header element and the general accepted usage of header (or masthead). There's usually only one header or 'masthead' in a page. In HTML5 you can have as many as you want. The spec defines it as "a group of introductory or navigational aids". You can use a header in any section on your site. In fact, you probably should use a header within most of your sections. The spec describes the section element as "a thematic grouping of content, typically with a heading."

nav - Intended for major navigation information. A group of links grouped together isn't enough reason to use the nav element. Site-wide navigation, on the other hand belongs in a nav element.

footer - Sounds like its a description of the position, but its not. Footer elements contain information about it's containing element: who wrote it, copyright, links to related content, etc. Whereas we usually have one footer for an entire document, HTML5 allows us to also have footer within sections.


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