HTML <acronym> Tag. Not Supported in HTML5.
An acronym is marked up as follows:
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Definition and Usage
The <acronym> tag is not supported in HTML5. Use the <abbr> tag instead.
The <acronym> tag defines an acronym.
An acronym can be spoken as if it were a word, example NATO, NASA, ASAP, GUI.
By marking up acronyms you can give useful information to browsers, spell checkers, translation systems and search-engine indexers.
Tips and Notes
Tip: The title attribute can be used to show the full version of the
acronym when you mouse over it.
Differences Between HTML 4.01 and HTML5
The <acronym> tag is not supported in HTML5.
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