A set of navigation links:
The <nav> tag is supported in Internet Explorer 9, Firefox, Opera, Chrome, and Safari.
Note: Internet Explorer 8 and earlier versions, do not support the <nav> tag.
The <nav> tag defines a set of navigation links.
Not all links of a document must be in a <nav> element. The <nav> element is intended only for major block of navigation links.
Browsers, such as screen readers for disabled users, can use this element to determine whether to omit the initial rendering of this content.
The <nav> tag is new in HTML5.
The <nav> tag also supports the Global Attributes in HTML.
The <nav> tag also supports the Event Attributes in HTML.
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