HTML5 Tags

Here is a list of with description of HTML tags:

• article This tag specifies independent, self-contained content.An article should make sense on its own, and it should be possible to distribute it independently from the rest of the site.Examples of possible articles: forum post, newspaper article, blog entry, user comment, etc.
• aside This tag defines some content aside from the content it is placed in. The aside content should be related to the surrounding content
• audio Sound or audio stream
• canvas This element provides scripts with a resolution-dependent bitmap canvas, which can be used for rendering graphs, game graphics, or other visual images on the fly.
• command Command that users can invoke
• datalist Set of option elements that represent predefined options for other controls
• details Disclosure widget from which users can obtain additional information or controls
• figure Flow content, optionally with a caption, that is self-contained and is typically referenced as a single unit from the main flow of the document
• footer Footer for its nearest ancestor sectioning content or sectioning root element
• header Group of introductory or navigational aids
• hgroup Heading of a section
• keygen Key pair generator control
• mark Run of text in one document marked or highlighted for reference purposes, due to its relevance in another context
• math MathML $a^2+b^2=c^2$
• meter Scalar measurement within a known range, or a fractional value; for example disk usage, the relevance of a query result, or the fraction of a voting population to have selected a particular candidate
• Nav Section of a page that links to other pages or to parts within the page: a section with navigation links.
• output Result of a calculation
• progress Completion progress of a task
Example of indeterminate progress: 0%

• ruby This element allows one or more spans of phrasing content to be marked with ruby annotations.
• section Generic section of a document or application
• source This element allows authors to specify multiple alternative media resources for media elements.
• summary Summary, caption, or legend for the rest of the contents of the summary element's parent details element, if any
• svg Scalable Vector Graphics (SVG)
• time Time on a 24-hour clock, or a precise date in the proleptic Gregorian calendar, optionally with a time and a time-zone offset
• video Used for playing videos or movies, and audio files with captions. 

Here is some examples of these tags usage.