What's New in XHTML2
According to the W3C the next version of XHTML - is going to "last call real soon now". Steven Pemberton the Chair of the W3C Working Group has posted a presentation on XHTML2 on the W3C web site. The presentation shows some cool new features in XHTML 2...
IMG tag was not part of the original HTML, and was badly designed according to Pemberton. So in XHTML2 any element can have a
src attribute, the inner content of the attribute is used as a fall back if images are disabled, and also serves as the
longdesc for the image. So for example:
<p src="ipod.jpg"> The ipod is a white mp3 player about the size of a deck of cards </p>
Structure - Sections and Headings
When you think about the
h1, h2, etc tags, they feel un-normalized - as if you were creating a database table, and instead of crating another table for properties, you created a column for a fixed number of properties.
Additionally it is difficult for blind people to derive structure from a HTML web page. Often the only clue is the level of header used (h1, h2 etc), and often they are not used correctly.
In XHTML version 2 this is solved with the addition of the
<section> <h>The Heading</h> <p>Some content</p> <section> <h>A sub section</h> <p>Sub content</p> </section> </section>
separator tag was created:
hris not presentational, but structural: a lightweight section separator.
The only thing wrong with
hris that it is not (necessarily) horizontal, and not (necessarily) a rule!
We already needed a separator element for navigation lists, so we just decided to do away with all the confusion and rename
The role attribute
role attribute can be used on any element to specify what an element is for. For instance
This is a great feature for those looking to create semantic web pages. Elements can have specific meanings that would presumably be predefined by other standards. Steven suggests that using
role's could replace the need for RSS. Not that its going anywhere, anytime soon.
The attributes in the
link tags can be used on any element, so you can create smaller documents by saying that the
title tag is also this
<h property="title">This is the title of my document</h>
p tag now allows much more to be inside of it, such as lists.
There are many more tags not covered in the presentation, such as:
linetag instead of
quotetag instead of
- New list type
nlfor navigational lists, or menus.
The goals of XHTML2 were to be more Accessible, Usable, Device Independent and Semantic.
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