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HTML is the standard markup language for web pages, defined by the W3C and ISO. Learn about its origins, elements, tags, attributes, versions and related technologies such as CSS, JavaScript and HTML5.
Learn how to use character entity references in XML and HTML documents, and see the list of predefined and custom entities for various scripts and symbols. Find out the differences between numeric and character entity references, and the formal public identifiers for HTML DTD entities subsets.
Learn the meaning and usage of HTTP response status codes, which indicate the server's response to a client's request. The codes are classified into five categories: 1xx, 2xx, 3xx, 4xx, and 5xx.
An HTML element is a type of HTML document component, one of several types of HTML nodes. Learn about the syntax, categories, attributes, and examples of HTML elements, and how they differ from HTML tags.
Learn how to specify and detect the character encoding of HTML documents, and which encodings are permitted by the HTML standards. The web page explains the difference between UTF-8, UTF-16, UTF-32, and other encodings, and their advantages and disadvantages.
Before this change, 988 callers were routed to a call center based on their area code rather than physical location. For instance, someone based in Los Angeles who has a cell phone number with a ...
On 14 February 2011, the W3C extended the charter of its HTML Working Group with clear milestones for HTML5. 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.
Learn how HTML documents can contain multilingual text represented with the Unicode universal character set. Find out how to use character encodings, numeric and named character references, and entity references in HTML.