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HTML5 ( Hypertext Markup Language 5) is a markup language used for structuring and presenting hypertext documents on the World Wide Web. It was the fifth and final [4] major HTML version that is now a retired World Wide Web Consortium (W3C) recommendation. The current specification is known as the HTML Living Standard.
Initially code-named "Cougar", HTML 4.0 adopted many browser-specific element types and attributes, but also sought to phase out Netscape's visual markup features by marking them as deprecated in favor of style sheets. HTML 4 is an SGML application conforming to ISO 8879 – SGML. April 24, 1998
Following the addition of sectioning elements in HTML5, there was confusion regarding whether role attributes were needed for sectioning elements. It is in fact redundant to give sectioning elements the role attribute. Additionally, you should not try to alter sectioning elements' default roles. Examples of misuse
HTML's usage of character references derives from SGML. HTML character references. A numeric character reference in HTML refers to a character by its Universal Character Set/Unicode code point, and uses the format &#nnnn; or &#xhhhh; where nnnn is the code point in decimal form, and hhhh is the code point in hexadecimal form.
An entity declaration is created in XML, SGML and HTML documents (before HTML5) by using the <!ENTITY name "value"> syntax in a Document type definition (DTD). Character reference overview [ edit ] In HTML and XML, a numeric character reference refers to a character by its Universal Character Set / Unicode code point , and uses the format:
The MediaWiki software, which drives Wikipedia, allows the use of a subset of HTML 5 elements, or tags and their attributes, for presentation formatting. But most HTML can be included by using equivalent wiki markup or templates; these are generally preferred within articles, as they are sometimes simpler for most editors and less intrusive in the editing window; but Wikipedia's Manual of ...
Concepts HTML element content categories Elements vs. tags As is generally understood, the position of an element is indicated as spanning from a start tag and is terminated by an end tag. This is the case for many, but not all, elements within an HTML document. The distinction is explicitly emphasised in HTML 4.01 Specification: Elements are not tags. Some people refer to elements as tags (e ...
Use {} or <code> for source code. Use {} or <kbd> for computer input (it need not represent actual keystrokes) 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).