Article Actions<acronym>Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.SummaryThe <acronym> HTML element allows authors to clearly indicate a sequence of characters that compose an acronym or abbreviation for a word.
AttributesThis element only has global attributes, which are common to all elements.DOM InterfaceThis element implements the HTMLElement interface.Example<p>The <acronym title=”World Wide Web”>WWW</acronym> is only a component of the Internet.</p>
Techniques for WCAG 2.0Skip to Content (Press Enter) On this page:- H28: Providing definitions for abbreviations by using the abbr elementImportant Information about TechniquesSee Understanding Techniques for WCAG Success Criteria for important information about the usage of these informative techniques and how they relate to the normative WCAG 2.0 success criteria. The Applicability section explains the scope of the technique, and the presence of techniques for a specific technology does not imply that the technology can be used in all situations to create content that meets WCAG 2.0.ApplicabilityHTML and XHTMLThis technique relates to: User Agent and Assistive Technology Support NotesSee User Agent Support Notes for H28.DescriptionThe objective of this technique is to provide expansions or definitions for
Example 4: Using the abbr element to expand an initialism Example Code: <p><abbr title=”World Wide Web”>WWW</abbr></p>ResourcesResources are for information purposes only, no endorsement implied.Related TechniquesTestsProcedureExpected ResultsIf this is a sufficient technique for a success criterion, failing this test procedure does not necessarily mean that the success criterion has not been satisfied in some other way, only that this technique has not been successfully implemented and can not be used to claim conformance. This Web page is part of Techniques and Failures for Web Content Accessibility Guidelines 2.0 (see the latest version of this document). The entire document is also available as a single HTML file. See the The WCAG 2.0 Documents for an explanation of how this document fits in with other Web Content Accessibility Guidelines (WCAG) 2.0 documents. Para enviar comentarios públicos, siga las Instrucciones para comentar los documentos WCAG 2.0.
El Lenguaje de Marcas de Hipertexto (HTML) es el conjunto de símbolos o códigos de marcas que se insertan en un archivo destinado a ser mostrado en Internet. Las marcas indican a los navegadores cómo mostrar las palabras e imágenes de una página web.
Cada pieza individual de código de marcado (que se encuentra entre los caracteres “<” y “>”) se denomina elemento, aunque mucha gente también se refiere a él como etiqueta. Algunos elementos vienen en pares que indican cuándo debe comenzar un efecto de visualización y cuándo debe terminar.
El lenguaje de marcado de hipertexto es el lenguaje informático que facilita la creación de sitios web. El lenguaje, que tiene palabras clave y sintaxis como cualquier otro lenguaje, es relativamente fácil de comprender y, con el paso del tiempo, cada vez más potente en lo que permite crear. El HTML sigue evolucionando para satisfacer las demandas y requisitos de Internet bajo la tutela del World Wide Web Consortium, la organización que diseña y mantiene el lenguaje; por ejemplo, con la transición a la Web 2.0.
El hipertexto es el método por el que los usuarios de Internet navegan por la web. Al hacer clic en un texto especial llamado hipervínculo, los usuarios son conducidos a nuevas páginas. El uso de hipertexto significa que no es lineal, por lo que los usuarios pueden ir a cualquier parte de Internet simplemente haciendo clic en los enlaces disponibles. El marcado es lo que las etiquetas HTML hacen al texto dentro de ellas; lo marcan como un tipo específico de texto. Por ejemplo, el texto marcado puede aparecer en forma de negrita o cursiva para llamar la atención sobre una palabra o frase.
When including an abbreviation or acronym, provide a full expansion of the term in plain text on first use, along with the <abbr> to mark up the abbreviation. This informs the user what the abbreviation or acronym means.
The optional title attribute can provide an expansion for the abbreviation or acronym when a full expansion is not present. This provides a hint to user agents on how to announce/display the content while informing all users what the abbreviation means. If present, title must contain this full description and nothing else.Try it
AttributesThis element only supports the global attributes. The title attribute has a specific semantic meaning when used with the <abbr> element; it must contain a full human-readable description or expansion of the abbreviation. This text is often presented by browsers as a tooltip when the mouse cursor is hovered over the element.
Each <abbr> element you use is independent from all others; providing a title for one does not automatically attach the same expansion text to others with the same content text.Usage notesTypical use casesIt’s certainly not required that all abbreviations be marked up using <abbr>. There are, though, a few cases where it’s helpful to do so: