- conditional content
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From User Agent Accessibility Guidelines 1.0 (2002-12-17) | Glossary for this source
Conditional content is content that, by format specification, should be made available to users through the user interface, generally under certain conditions (e.g., based on user preferences or operating environment limitations). Some examples of conditional content mechanisms include: The alt attribute of the IMG element in HTML 4. According to section 13.2 of the HTML 4 specification ([HTML4]): "User agents must render alternate text when they cannot support images, they cannot support a certain image type or when they are configured not to display images."OBJECT elements in HTML 4. Section 13.3.1 of the HTML 4 specification ([HTML4]) explains the conditional rendering rules of (nested) OBJECT elements. The rules select among ordered alternatives according to user preferences or error conditions.The switch element and test attributes in SMIL 1.0. Sections 4.3 and 4.4, respectively, of SMIL 1.0 [SMIL] explain the conditional rendering rules of these features.SVG 1.0 [SVG] also includes a switch element and several attributes for conditional processing.The NOSCRIPT and NOFRAMES elements in HTML 4 [HTML4] allow the author to provide content under conditions when the user agent does not support scripts or frames, or the user has turned off support for scripts or frames.Specifications vary in how completely they define how and when to render conditional content. For instance, the HTML 4 specification includes the rendering conditions for the alt attribute, but not for the title attribute. The HTML 4 specification does indicate that the title attribute should be available to users through the user interface ("Values of the title attribute may be rendered by user agents in a variety of ways...").Note: The Web Content Accessibility Guidelines 1.0 requires that authors provide text equivalents for non-text content. This is generally done by using the conditional content mechanisms of a markup language. Since conditional content may not be rendered by default, the current document requires the user agent to provide access to unrendered conditional content (checkpoints 2.3 and 2.9) as it may have been provided to promote accessibility.
- content
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From Glossary of Cascading Style Sheets, level 2 CSS2 Specification (1998-05-12) | Glossary for this source
The content associated with an element in the source document; not all elements have content in which case they are called empty. The content of an element may include text, and it may include a number of sub-elements, in which case the element is called the parent of those sub-elements.
- content
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From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source
The text between the start-tag and end-tag is called the element's content:
- content
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From User Agent Accessibility Guidelines 1.0 (2002-12-17) | Glossary for this source
In this specification, the noun "content" is used in three ways: It is used to mean the document object as a whole or in parts.It is used to mean the content of an HTML or XML element, in the sense employed by the XML 1.0 specification ([XML], section 3.1): "The text between the start-tag and end-tag is called the element's content." Context should indicate that the term content is being used in this sense.It is used in the terms non-text content and text content.Empty content (which may be conditional content) is either a null value or an empty string (i.e., one that is zero characters long). For instance, in HTML, alt="" sets the value of the alt attribute to the empty string. In some markup languages, an element may have empty content (e.g., the HR element in HTML).
- content
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From Extensible Markup Language (XML) 1.0 (2000-10-06) | Glossary for this source
The text between the start-tag and end-tag is called the element's content:
- content developer
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From Web Content Accessibility Guidelines 1.0 (1999-05-05) | Glossary for this source
Someone who authors Web pages or designs Web sites.
- content elements
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From Mathematical Markup Language (MathML) Version 2.0 (2001-02-21) | Glossary for this source
MathML elements that explicitly specify the mathematical meaning of a portion of a MathML expression (defined in Chapter 4 [Content Markup]).
- content expression
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From XQuery 1.0: An XML Query Language (2007-01-23) | Glossary for this source
The final part of a computed constructor is an expression enclosed in braces, called the content expression of the constructor, that generates the content of the node.
- content generation
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From Composite Capability/Preference Profiles (CC/PP): Structure and Vocabularies 1.0 (2004-01-15) | Glossary for this source
For the purpose of this specification, "content generation"
refers to generating content appropriate to the user agent profile
of the request by using the user agent profile as input to a
dynamic content generation engine. The XSL and style sheets of the
document are used to tailor the document to the user agent profile
of the request.
- content model
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From Extensible Markup Language (XML) 1.1 (2004-02-04) | Glossary for this source
In this case, the constraint includes a content model, a simple grammar governing the allowed types of the child elements and the order in which they are allowed to appear.
- content model
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From Modularization of XHTML (2001-04-10) | Glossary for this source
the declared markup structure allowed within instances of an element type. XML 1.0 differentiates two types: elements containing only element content (no character data) and mixed content (elements that may contain character data optionally interspersed with child elements). The latter are characterized by a content specification beginning with the "#PCDATA" string (denoting character data).
- content negotiation
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From Composite Capability/Preference Profiles (CC/PP): Structure and Vocabularies 1.0 (2004-01-15) | Glossary for this source
The mechanism for selecting the appropriate representation
when
servicing a request. The representation of entities in any response
can be negotiated (including error responses).
- content negotiation
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From Glossary of Terms for Device Independence (2005-01-18) | Glossary for this source
- content negotiation
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From Hypertext Transfer Protocol -- HTTP/1.1 (1999-06-15) | Glossary for this source
The mechanism for selecting the appropriate representation when servicing a request, as described in section 12. The representation of entities in any response can be negotiated (including error responses).
- content negotiation
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From Architecture of the World Wide Web, Volume One (2004-12-15) | Glossary for this source
The practice of providing multiple
representations available via the same URI. Which representation is
served depends on negotiation between the requesting agent and the
agent serving the representations.
- content provider
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From Composite Capability/Preference Profiles (CC/PP): Structure and Vocabularies 1.0 (2004-01-15) | Glossary for this source
A server that originates content in response to a
request.
- content selection
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From Composite Capability/Preference Profiles (CC/PP): Structure and Vocabularies 1.0 (2004-01-15) | Glossary for this source
For the purpose of this specification, "content selection"
refers to selecting an appropriate document from a list of possible
choices or variants by matching the document profile with the user
agent profile of the request.
- content set
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From Modularization of XHTML (2001-04-10) | Glossary for this source
Some modules define lists of explicit element names called content sets. When a content set is included in a content model, its name will be listed.
- content token element
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From Mathematical Markup Language (MathML) Version 2.0 (2001-02-21) | Glossary for this source
Content element having only PCDATA, sep and presentation expressions as content. Represents either an identifier (ci) or a number (cn).
- document content, structure, and presentation
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From Web Content Accessibility Guidelines 1.0 (1999-05-05) | Glossary for this source
The content of a document refers to what it says to the user through natural language, images, sounds, movies, animations, etc. The structure of a document is how it is organized logically (e.g., by chapter, with an introduction and table of contents, etc.). An element (e.g., P, STRONG, BLOCKQUOTE in HTML) that specifies document structure is called a structural element. The presentation of a document is how the document is rendered (e.g., as print, as a two-dimensional graphical presentation, as an text-only presentation, as synthesized speech, as braille, etc.) An element that specifies document presentation (e.g., B, FONT, CENTER) is called a presentation element.Consider a document header, for example. The content of the header is what the header says (e.g., "Sailboats"). In HTML, the header is a structural element marked up with, for example, an H2 element. Finally, the presentation of the header might be a bold block text in the margin, a centered line of text, a title spoken with a certain voice style (like an aural font), etc.