February 2006
Intermediate to advanced
826 pages
63h 42m
English
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Introduction to XHTML
With the finalization of the XML Recommendation in hand (see Chapter 7), the W3C had a streamlined and web-friendly standard for defining markup languages. It should come as no surprise that one of the top priorities was reformulating HTML (an SGML application) into an XML application. XHTML is the result.
XHTML 1.0 contains the same list of elements and attributes as HTML 4.01. It even has the same three associated DTDs: Strict, Transitional, and Frames. The difference is that, as for all XML applications, correct syntax is suddenly critical. So while browsers are forgiving of a certain amount of looseness in HTML, XHTML documents are required to be well-formed. The syntax requirement differences between HTML and XHTML are listed in the upcoming "Well-Formed XHTML" section. The W3C recognizes the benefit of having a stricter professional standard and a more relaxed standard that is accessible to anyone who wants to publish on the Web, so both HTML and XHTML standards are currently maintained and supported by current browsers.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.