XHTML 1.1
The XHTML 1.1 Recommendation, released in 2001, is a reformulation of XHTML 1.0 (Strict) using the XHTML modules. It is also the first markup language to be fully liberated from legacy functionality of HTML by completely eliminating the elements and attributes that control presentation. Authors are required to put all style and layout information in Cascading Style Sheets.
Some examples of modules in XHTML 1.1 include structure, text, hypertext, lists, object, image, forms, tables, objects, and image maps.
As of this writing, few browsers support an XHTML 1.1 document when it is properly identified as an XML application media type. For this reason, although XHTML 1.1 is the most recent Recommendation, most professional developers use XHTML 1.0 because it can be labeled as HTML text. XHTML media types are discussed further in Chapter 9.
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