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An HTML element is a type of HTML (HyperText Markup Language) document component, one of several types of HTML nodes ... An ordered (enumerated) list.
This article lists the character entity references that are valid in HTML and XML documents. A character entity reference refers to the content of a named entity. An entity declaration is created in XML, SGML and HTML documents (before HTML5) by using the <!ENTITY name "value"> syntax in a Document type definition (DTD).
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 last of these is visually confusing and results in invalid markup. It caused the creation of an embedded but improperly formed description list (the <dl> HTML element): it has a definition, indicated by : (in HTML that's <dd>), but no term (the missing ; element, which corresponds to HTML <dt>).
An attribute list specifies for a given element type the list of all possible attribute associated with that type. For each possible attribute, it contains: the declared name of the attribute, its data type (or an enumeration of its possible values), and its default value. [4] For example:
The term is commonly used in mathematics and computer science to refer to a listing of all of the elements of a set. The precise requirements for an enumeration (for example, whether the set must be finite, or whether the list is allowed to contain repetitions) depend on the discipline of study and the context of a given problem.
In HTML DOM (Document Object Model), every element is a node: [4] A document is a document node. All HTML elements are element nodes. All HTML attributes are attribute nodes. Text inserted into HTML elements are text nodes. Comments are comment nodes.
HTML attributes are special words used inside the opening tag to control the element's behaviour. It is a piece of markup language used to adjust the behavior or display of an HTML element.HTML attributes are a modifier of a HTML element type. An attribute either modifies the default functionality of an element type or provides functionality to ...