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Wikipedia uses two separate templates to generate tooltips. The{{abbr}} template is used to write an abbreviation (including an acronym or initialism) with its expanded meaning. It is a wrapper for theHTMLelement<abbr>...</abbr>. The{{tooltip}} template uses the<span>...</span> element to provide generic notes.
Only use{{abbr}} or<abbr> to mark up abbreviations (including acronyms and initialisms). Using it to generate tooltips elsewhere is a misuse of the underlying HTML and causesaccessibility problems. For general-purpose tooltips, use{{tooltip}} instead.
Readers onmobile devices typically do not have a mouse to hover with, and so generally cannot see tooltip contents. As of 2023, more English Wikipedia page views occur on mobile than on desktop browsers.[1]
Usage
{{Abbr|text to display inline in the article|pop-up tip}}
Parameters
Two unnamed (positional) parameters (required) and three named parameters (optional):
|1= – the term to be explained; displays as text.Wiki markup is allowed but works more consistently when wrapping the template, see below for linking examples.
|2= – the tooltip/pop-up (no wiki or HTML markup allowed). The popup is created by an HTMLtitle= attribute, so it cannot contain HTML (or markup that resolves to HTML when rendered). This includes simple things like''italics''.
|class= – one or more CSS classes (space-separated if more than one)
|id= – an HTML ID must be unique on the entire page.
|style= – CSS to apply to the displayed text (no effect on tooltip/popup). Any style values with embedded blanks must be single-quoted, e.g.|style=font-family: 'Times New Roman', serif;
Accessible when used in addition to inline expansion
Markup
Renders as
High school students staying overnight on the Louisiana School for the Deaf (LSD) campus can phone their parents using an American Sign Language (ASL) interpreter. Although fluent in {{abbr|ASL|American Sign Language}}, most students at {{abbr|LSD|Louisiana School for the Deaf}} prefer texting their parents directly.
In the above example, each abbreviation is first expanded in the body text within parentheses. The template provides anadditional way for some users to access the meaning later in the text. SeeMOS:ABBR for more information.
Less accessible when used in place of inline expansion
Markup
Renders as
High school students staying overnight on the {{abbr|LSD|Louisiana School for the Deaf}} campus can phone their parents using an {{abbr|ASL|American Sign Language}} interpreter. Although fluent in {{abbr|ASL|American Sign Language}}, most students at {{abbr|LSD|Louisiana School for the Deaf}} prefer texting their parents directly.
In the above example, all abbreviations are expanded via the template. This is discouraged because it is theonly way for users to access the meaning. Users reading on a mobile device, reading a printout, or listening to a screen reader will likely not have access to the full meaning.
Least accessible whenmisused to create tooltip notes
Markup
Renders as
High school students staying overnight on the {{abbr|LSD|Louisiana School for the Deaf}} campus can phone their parents using an {{abbr|ASL|American Sign Language}} {{abbr|interpreter|Although fluent in ASL, most students at LSD prefer texting their parents directly.}}.
In the above example, all abbreviations are expanded via the template, and an entire sentence is embedded via the template. It is theonly way for users to access the meaning. A user reading on a mobile device, reading a printout, or listening to a screen reader will likely not have access to the full meaning of the abbreviation and will have no clear indication that the embedded footnote exists.
Tooltip example
Markup
Renders as
[[WP:COI|{{tooltip|conflict of interest|in the specific sense employed in Wikipedia policy}}]]
Tooltips should not be used within the body text of an article if possible (seeMOS:NOTOOLTIPS). Generic tooltip notes are not a substitute forfootnotes and are intended to be used for navigational and other secondary features where space is limited. SeeTemplate:Glossary link orTemplate:Cite book/doc#Usage for practical examples.
