Glossary

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Caption(also: Image Caption, Figure Caption)

In the context of image accessibility, a caption is text that describes or provides context for an image. Unlike alt text, which is typically hidden and read only by screen readers, captions are often visible to all users and may appear below or alongside an image. Captions can…

HTML Table(also: Data Table, Web Table)

An HTML table is a structured element in web markup used to organize data into rows and columns. Tables are created using the table, tr (table row), th (table header), and td (table data) elements. For accessibility, data tables must include proper header markup (th elements…

HTML5 Track Element(also: <track> Element, Track Tag, HTML Track)

The HTML5 <track> element is used to specify timed text tracks for <video> and <audio> elements, providing a standardized way to associate captions, subtitles, descriptions, chapters, and metadata with media content. Each <track> element specifies a kind (captions, subtitles,…

Longdesc(also: Long Description, longdesc Attribute)

An HTML attribute historically used to provide extended descriptions for images that require more detail than can fit in an alt attribute. The longdesc attribute contained a URL pointing to a separate page or anchor with the full description. While part of HTML 4.01 and…

Ruby Annotation(also: Ruby Text, Furigana, Ruby Markup)

Small glossing text placed above, beside, or below a base character to indicate pronunciation or meaning — most commonly used for Japanese furigana (kana reading hints above kanji), but also applied in Chinese bopomofo/pinyin, Korean hangul aids, and multilingual teaching…

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