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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 ]
The HTML5 specification does not itself define ways to do animation and interactivity within web pages. [2] "HTML5" in this article sometimes refers not only to the HTML5 specification, but to HTML5 and related standards like SVG, JavaScript and CSS 3. Animation via JavaScript is also possible with HTML 4.
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.
H5P is an abbreviation for HTML5 Package, and aims to make it easy for everyone to create, share and reuse interactive HTML5 content. [2] [3] Interactive videos, interactive presentations, quizzes, interactive timelines and more [4] have been developed and shared using H5P on H5P.org. H5P is being used by 17 000+ websites.
Use {} or <samp> for sample output from a program or system (can include directory listings and other matter) Use {} or <var> for variable names (in code, mathematics, or even syntactic variables in regular writing). Use {} for monospace-styled text without the semantics of any of the above.
In 2007, the W3C's HTML working group voted to officially recognize HTML5 and work on it as the next-generation HTML standard. [8] In 2009, the W3C allowed the XHTML 2.0 Working Group's charter to expire, acknowledging that HTML5 would be the sole next-generation HTML standard, including both XML and non-XML serializations. [9]
The cache manifest in HTML5 was a software storage feature which provided the ability to access a web application even without a network connection. It became part of the W3C Recommendation on 28 October 2014. [1] Since 2021, this technology is no longer widely available.