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Document type declaration

Index Document type declaration

A document type declaration, or DOCTYPE, is an instruction that associates a particular SGML or XML document (for example, a webpage) with a document type definition (DTD) (for example, the formal definition of a particular version of HTML1.0 - HTML 4.0). [1]

22 relations: Browser engine, Cascading Style Sheets, Deprecation, Document type definition, Formal Public Identifier, Framing (World Wide Web), HTML, HTML5, Markup language, Polyglot markup, Quirks mode, RDFa, Serialization, Standard Generalized Markup Language, Web browser, Web page, WHATWG, World Wide Web Consortium, XHTML, XHTML Modularization, XML, XML schema.

Browser engine

A browser engine is a core software component of every major web browser.

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Cascading Style Sheets

Cascading Style Sheets (CSS) is a style sheet language used for describing the presentation of a document written in a markup language like HTML.

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Deprecation

In several fields, deprecation is the discouragement of use of some terminology, feature, design, or practice, typically because it has been superseded or is no longer considered efficient or safe, without completely removing it or prohibiting its use.

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Document type definition

A document type definition (DTD) is a set of markup declarations that define a document type for an SGML-family markup language (SGML, XML, HTML).

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Formal Public Identifier

A Formal Public Identifier (FPI) is a short piece of specially formatted text that may be used to uniquely identify a product, specification or document.

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Framing (World Wide Web)

In the context of a web browser, a frame is a part of a web page or browser window which displays content independent of its container, with the ability to load content independently.

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HTML

Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications.

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HTML5

HTML5 is a markup language used for structuring and presenting content on the World Wide Web.

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Markup language

In computer text processing, a markup language is a system for annotating a document in a way that is syntactically distinguishable from the text.

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Polyglot markup

In computing, a polyglot markup is a document or script written in a valid form of multiple markup languages, which performs the same output, independent of the markup's parser, layout engine, or interpreter.

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Quirks mode

In computing, quirks mode refers to a technique used by some web browsers for the sake of maintaining backward compatibility with web pages designed for Internet Explorer 5 and earlier, instead of strictly complying with W3C and IETF standards in standards mode.

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RDFa

RDFa (or Resource Description Framework in Attributes) is a W3C Recommendation that adds a set of attribute-level extensions to HTML, XHTML and various XML-based document types for embedding rich metadata within Web documents.

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Serialization

In computer science, in the context of data storage, serialization is the process of translating data structures or object state into a format that can be stored (for example, in a file or memory buffer) or transmitted (for example, across a network connection link) and reconstructed later (possibly in a different computer environment).

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Standard Generalized Markup Language

The Standard Generalized Markup Language (SGML; ISO 8879:1986) is a standard for defining generalized markup languages for documents.

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Web browser

A web browser (commonly referred to as a browser) is a software application for accessing information on the World Wide Web.

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Web page

A web page (also written as webpage) is a document that is suitable for the World Wide Web and web browsers.

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WHATWG

The Web Hypertext Application Technology Working Group (WHATWG) is a community of people interested in evolving HTML and related technologies.

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World Wide Web Consortium

The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web (abbreviated WWW or W3).

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XHTML

Extensible Hypertext Markup Language (XHTML) is part of the family of XML markup languages.

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XHTML Modularization

XHTML modularization is a methodology for producing modularized markup languages in a number of different schema languages (currently DTDs, XML Schema and Relax NG) so that the modules can easily be plugged together to create markup languages.

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XML

In computing, Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable.

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XML schema

An XML schema is a description of a type of XML document, typically expressed in terms of constraints on the structure and content of documents of that type, above and beyond the basic syntactical constraints imposed by XML itself.

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Redirects here:

!DOCTYPE, DOCTYPE, Doc type, DocType, Doctype, Doctype declaration, Doctype switching, Document Type Declaration.

References

[1] https://en.wikipedia.org/wiki/Document_type_declaration

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