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The data URI scheme is a uniform resource identifier (URI) scheme that provides a way to include data in-line in Web pages as if they were external resources. It is a form of file literal or here document. This technique allows normally separate elements such as images and style sheets to be fetched in a single Hypertext Transfer Protocol (HTTP ...
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 certain element types unable to function correctly without them. In HTML syntax, an attribute is added to a HTML start tag .
The layout of frames is given by comma separated lists in the rows and cols HTML attributes. Standardized in HTML 4.0 Frameset, obsolete in HTML5. <frame /> (deprecated) Defines a single frame, or region, within the <frameset>. A separate document is linked to a frame using the src attribute inside the <frame /> element.
in HTML, the value of the src attribute of the img element provides a URI reference, as does the value of the href attribute of the a or link element; in XML, the system identifier appearing after the SYSTEM keyword in a DTD is a fragmentless URI reference;
In computer hypertext, a URI fragment is a string of characters that refers to a resource that is subordinate to another, primary resource. The primary resource is identified by a Uniform Resource Identifier (URI), and the fragment identifier points to the subordinate resource. The fragment identifier introduced by a hash mark # is the optional ...
In cases where the content attribute's value is a URL, many authors decide to use a link element with a proper value for its rel attribute as well. For a comparison on when it is best to use HTTP-headers, meta-elements, or attributes in the case of language specification: see here. See also. Meta refresh, a deprecated meta element
HTML markup consists of several key components, including those called tags (and their attributes), character-based data types, character references and entity references. HTML tags most commonly come in pairs like < h1 > and </ h1 >, although some represent empty elements and so are unpaired, for example < img >.
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