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HTML5 is designed so that old browsers can safely ignore new HTML5 constructs. [8] In contrast to HTML 4.01, the HTML5 specification gives detailed rules for lexing and parsing , with the intent that compliant browsers will produce the same results when parsing incorrect syntax. [ 126 ]
In May 2011, the working group advanced HTML5 to "Last Call", an invitation to communities inside and outside W3C to confirm the technical soundness of the specification. The W3C developed a comprehensive test suite to achieve broad interoperability for the full specification by 2014, which was the target date for recommendation. [ 51 ]
In SGML, HTML and XML documents, the logical constructs known as character data and attribute values consist of sequences of characters, in which each character can manifest directly (representing itself), or can be represented by a series of characters called a character reference, of which there are two types: a numeric character reference and a character entity reference.
A description list (a.k.a. association list or definition list) consists of name–value groups, [21] and was known as a definition list prior to HTML5. [22] Description lists are intended for groups of "terms and definitions, metadata topics and values, questions and answers, or any other groups of name–value data". [23]
W3C briefly switched to WHATWG's definition in the draft stages of HTML5, but switched back to their own definition in 2012 after protest from the Web developer community. This difference subsequently disappeared when the W3C's version was subsumed into the WHATWG's version in the late 2010s and now the WHATWG's version is the only version in ...
Semantic HTML is the use of HTML markup to reinforce the semantics, or meaning, of the information in web pages and web applications rather than merely to define its presentation or look. Semantic HTML is processed by traditional web browsers as well as by many other user agents. CSS is used to suggest how it is presented to human users.
Bundles galore. In discussing both fast food and grocery trends in 2024, it’s hard to avoid talking about The Almighty Bundle. Quick-service restaurants embraced it first, with McDonald’s $5 ...
Thus, the HTML 5 specification has altered its definition of HTML syntax both to accommodate common syntax in use today, and to explicitly describe exactly how "badly formed code" should be treated by the parser.