Microformats are a web-based approach to semantic markup that reuses existing HTML/XHTML tags to convey metadata and attributes. It uses class and rel attributes to indicate the presence of metadata. Popular microformats include hCard for contact information, hCalendar for events, and hReview for reviews. Implementing microformats involves adding class names to existing HTML elements to represent things like names, addresses, dates, and more. This additional semantic data can then be extracted and used by applications like search engines.

1. XhtmlChop Presents
Microformats
by http://www.xhtmlchop.com
(Design to HTML / CMS)

2. What is Microformats?
A microformats is a web-based approach to semantic
markup which seeks to re-use existing HTML/XHTML
tags to convey metadata and other attributes in web
pages.
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3. What is the use of Microformats?
Using microformats within HTML code provides additional
formatting and semantic data that applications can use. For
example, applications such as web crawlers can collect
data about online resources.
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4. Technical overview
XHTML and HTML standards allow for the embedding and
encoding of semantics within the attributes of markup tags.
Microformats take advantage of these standards by indicating
the presence of metadata using the following attributes:
1. class
- Classname
2. rel
- relationship, description of the target address in an anchorelement (<a href=... rel=...>...</a>)
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5. Specific microformats
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hAtom – for marking up Atom feeds from within standard HTML
hCalendar – for events
hCard – for contact information; includes:
o adr – for postal addresses
o geo – for geographical coordinates (latitude, longitude)
hMedia - for audio/video content
hNews - for news content
hProduct – for products
hRecipe - for recipes and foodstuffs.
hResume – for resumes or CVs
hReview – for reviews
rel-enclosure – for multimedia attachments to web pages
rel-license – specification of copyright license
xFolk – for tagged links
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6. How to Use it?
For example, in the text "The birds roosted at 52.48, -1.89"
is a pair of numbers which may be understood, from their
context, to be a set of geographic coordinates. With
wrapping in spans (or other HTML elements) with specific
class names (in this case geo, latitude and longitude, all
part of the geo microformat specification):
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7. Example - Normal Code
The birds roosted at
<span>
<span>52.48</span>,
<span>-1.89</span>
</span>
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8. Example - MFs Implemented code
<p class="hCard">The birds roosted at
<span class="geo">
<span class="latitude">52.48</span>,
<span class="longitude">-1.89</span>
</span>
</p>
Here this information can be used by google crawl, google
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maps, and Also in GPS.

9. One more example - Normal Code
<ul>
<li>Joe Doe</li>
<li>The Example Company</li>
<li>604-555-1234</li>
<li><a
href="http://example.com/">http://example.com/</a></li>
</ul>
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10. MFs Implemented code
<ul class="hCard">
<li class="fn">Joe Doe</li>
<li class="org">The Example Company</li>
<li class="tel">604-555-1234</li>
<li><a class="url"
href="http://example.com/">http://example.com/</a>
</li>
</ul>
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11. Microformats Creator
hCard :
http://microformats.org/code/hcard/creator
hReview :
http://microformats.org/code/hreview/creator
hcalendar :
http://microformats.org/code/hcalendar/creator
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12. Microformats site URL
http://microformats.org/
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13. Thank you !
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