Microformats

From Wikipedia, the free encyclopedia.

Microformats are a set of data formats developed by Technorati, CommerceNet, and others that are intended to give meaning to content on the Internet. They are built on XHTML, where possible reusing existing semantic elements, and adding new meaning via a system of "class" or "rel" attributes.

For example, the "rel" attribute in hyperlinks can store additional information about the nature of the links. The first microformat, XHTML Friends Network (XFN), uses the "rel" attribute to allow web authors to identify their relationship to people they link from their websites.

The "class" attribute, being multivalued, can be used to indicate the semantic content of a contained element without necessarily affecting presentation.

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