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An HTML tag is composed of the name of the element, ... Both the start and end tags may be omitted and inferred from child elements (HTML5). [4]
Elements in an HTML or XML document are represented as nodes in the DOM tree. Each element node has a tag name and attributes, and can contain other element nodes or text nodes as children. For example, an HTML document with the following structure:
HTML element content categories. HTML documents imply a structure of nested HTML elements. These are indicated in the document by HTML tags, enclosed in angle brackets thus: < p >. [73] [better source needed] In the simple, general case, the extent of an element is indicated by a pair of tags: a "start tag" < p > and "end tag" </ p >. The text ...
The role attribute is used to define an element's role on a page. When sectioning elements were introduced, the role attribute became used less for landmarking. This is because roles were applied by default to most sectioning elements, therefore, they were more widely used and accepted for their simplicity.
an element content, which means that there must be no text elements in the children elements of the content (all whitespaces encoded between child elements are then ignored, just like comments). Such element content is specified as content particle in a variant of Backus–Naur form without terminal symbols and element names as non-terminal ...
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Content be delimited with a beginning and end tag; Content be properly nested (parents within roots, children within parents) To be a well-formed document, rules must be established about the declaration and treatment of entities. Tags are case sensitive, with attributes delimited with quotation marks. Empty elements have rules established.
Queen Elizabeth II's children meant the world to her. The royal, who was the longest-reigning monarch in British history, died on Sept. 8, 2022, at Balmoral, the family's royal estate in Scotland ...