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  2. HTML5 - Wikipedia

    en.wikipedia.org/wiki/HTML5

    XHTML5 is simply XML-serialized HTML5 data (that is, HTML5 constrained to XHTML's strict requirements, e.g., not having any unclosed tags), sent with one of XML media types. HTML that has been written to conform to both the HTML and XHTML specifications and therefore produces the same DOM tree whether parsed as HTML or XML is known as polyglot ...

  3. XHTML - Wikipedia

    en.wikipedia.org/wiki/XHTML

    XHTML 1.0 was "a reformulation of the three HTML 4 document types as applications of XML 1.0". [7] The World Wide Web Consortium (W3C) also simultaneously maintained the HTML 4.01 Recommendation.

  4. Comparison of HTML editors - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_HTML_editors

    The following tables compare general and technical information for a number of HTML editors.. Please see the individual products' articles for further information, comparison of text editors for information on text editors, and comparison of word processors or information on word processors, many of which have features to assist with writing HTML.

  5. HTML - Wikipedia

    en.wikipedia.org/wiki/HTML

    XHTML is a separate language that began as a reformulation of HTML 4.01 using XML 1.0. It is now referred to as the XML syntax for HTML and is no longer being developed as a separate standard. [59] XHTML 1.0 was published as a W3C Recommendation on January 26, 2000, [60] and was later revised and republished on August 1, 2002. It offers the ...

  6. Markup language - Wikipedia

    en.wikipedia.org/wiki/Markup_language

    From January 2000 until HTML 5 was released, all W3C Recommendations for HTML have been based on XML, using the abbreviation XHTML (Extensible HyperText Markup Language). The language specification requires that XHTML Web documents be well-formed XML documents. This allows for more rigorous and robust documents, by avoiding many syntax errors ...

  7. Comparison of document markup languages - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_document...

    Extensible HyperText Markup Language (XHTML) 2000 (January 26) W3C: Text/XML editor, HTML editor: Web browser: Halibut: 1999 Simon Tatham: Text editor: Output to ASCII text, HTML, PDF, PostScript, Unix man pages, GNU Info, Windows Help (.CHM files), Windows WinHelp (old .HLP files) HyperText Markup Language (HTML) 1993 Tim Berners-Lee: Text ...

  8. Comparison of stylesheet languages - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_stylesheet...

    A markup language, like HTML and less XUL, may define some primitive elements to style a document, for example <emphasis> to bold. CSS post styles a document to "screen media" or "paged media". Screen media, displayed as a single page (possibly with hyperlinks), that has a fixed horizontal width but a virtually unlimited vertical height.

  9. Comparison of HTML parsers - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_HTML_parsers

    HTML traversal: offer an interface for programmers to easily access and modify the "HTML string code". Canonical example: DOM parsers. HTML clean: to fix invalid HTML and to improve the layout and indent style of the resulting markup. Canonical example: HTML Tidy.