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Popular pages
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HTML5
HTML5 W3C Working Draft 24 May 2011 This Version: The bulk of the text of this specification is also available in the WHATWG Web Applications 1.0 specification, under a license that permits reus...
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1 Introduction — HTML5
This section is non-normative. The World Wide Web's markup language has always been HTML. HTML was primarily designed as a language for semantically describing scientific documents, although its g...
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4.12 Links — HTML5
area elements that create hyperlinks, if present, gives the language of the linked resource. It is purely advisory. The value must be a valid BCP 47 language tag. [BCP47] User agents must not ...
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3.2.5 Content models — HTML5
inter-element whitespace. Inter-element whitespace, comment nodes, and processing instruction nodes must be ignored when establishing whether an element's contents match the element's content mo...
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3.3 APIs in HTML documents — HTML5
Element.getElementsByTagName() HTML elements match by lower-casing the argument before comparison, elements from other namespaces are treated as in XML (case-sensitively). Specifically, these ...
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8 The HTML syntax — HTML5
The various types of content mentioned above are described in the next few sections. In addition, there are some restrictions on how character encoding declarations are to be serialized, as discus...