Html

[Fact 1]: The draft was considered very large at 150 pages and the pace of browser development, as well as the number of interested parties, had outstripped the resources of the IETF. Browser vendors, including Microsoft and Netscape at the time, chose to implement different subsets of HTML 3's draft features as well as to introduce their own extensions to it. by the W3C.:Although its syntax closely resembles that of SGML, HTML 5 has abandoned any attempt to be an SGML application and has explicitly defined its own "html" serialization, in addition to an alternative XML-based XHTML 5 serialization.HTML documents are composed entirely of that,in their most general form have three components:a pair of element '' with a "start tag" and "end tag";some element given to the element within the tags;and finally, all the actual textual and graphical information content that will be rendered on the display.An is everything between and including the tags.A is a keyword enclosed in angle brackets.A common form of an is:content to be renderedThe name of the HTML element is also the name of the tag.Note that the end tags name starts with a slash character, "/".The most general form of an is:content to be renderedBy not assigning attributes most start tags default their attribute values.There are some basic types of tags:Heading of the HTML:....

[Fact 2]: Most presentational markup elements have become deprecated under the HTML 4.0 specification, in favor of CSS based style design.

markup makes parts of a document into links to other documents.

[Fact 3]: Though its creators originally conceived of HTML as a semantic language devoid of presentation details,HTML Design Constraints, W3C Archives practical uses pushed many presentational elements and attributes into the language, driven largely by the various browser vendors.

[Fact 4]: When delivered as XHTML, browsers should use an XML parser, which adheres strictly to the XML specifications for parsing the document's contents.HTML 4 defined three different versions of the language: Strict, Transitional and Frameset.

[Fact 5]: For example, the acute-accented e .

[Fact 6]: HTML has included semantic markup from its inception, but has also included presentational markup such as <font>, <i> and <center> tags.

[Fact 7]: The Strict version is intended for new documents and is considered best practice, while the Transitional and Frameset versions were developed to make it easier to transition documents that conformed to older HTML specification or didn't conform to any specification to a version of HTML 4.

[Fact 8]: A document sent with the XHTML MIME type is expected to be well-formed XML; syntax errors may cause the browser to fail to render it.

[Fact 9]: To make this translation requires the following steps:# XHTML uses XML's built in language-defining functionality attribute.# HTML has no facilities for namespaces.# from XHTML 1.0 to HTML 4.01.

[Fact 10]: The single-quote character ('), when used to quote an attribute value, must also be escaped as ' or ' when it appears within the attribute value itself.

[Fact 11]: The main difference between these web application hybrids and Berners-Lee's semantic agents lies in the fact that the current aggregation and hybridisation of information is usually designed in by web developers, who already know the web locations and the API semantics of the specific data they wish to mash, compare and combine.An important type of web agent that does trawl and read web pages automatically, without prior knowledge of what it might find, is the Web crawler or search-engine spider.

[Fact 12]: However, the root element name continues to be 'html' even in the XHTML-specified HTML.