The World Wide Web Consortium (W3C) develops standards and guidelines to help everyone build a web based on the principles of accessibility, ...
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Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, ...
Jan 28, 2013 · The xmlns attribute is only required if you're writing and serving XML-serialized HTML5, aka XHTML5.
The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 and led by Tim Berners-Lee.
1 Introduction · 2 Common infrastructure · 3 Semantics, structure, and APIs of HTML documents · 4 The elements of HTML · 5 Microdata · 6 User interaction · 7 Loading ...
Apr 6, 2015 · First off, yes, http://www.w3.org/ is a completely upstanding site that is the repository of the documentation and specifications for html, xml, xhtml, and the ...
Apr 29, 2011 · The root element of an XHTML document must be html , and must contain an xmlns attribute to associate it with the XHTML namespace.