<abbr> Tag Attributes

Attributes of the <abbr> tag
global attributes In addition to the personal attributes of the <abbr> tag below, any of the common HTML attributes can also be coded.
title The title attribute may be coded with the expanded meaning of the acronym or abbreviation in the content of the <abbr> tag. However, browsers tend to ignore the title attribute of the <abbr> tag. To have the browser pop up tool tips with the meaning of acronyms or abbreviations, wrap the <abbr> tags inside <a> tags with title attributes instead, as described by Acronyms .net. Line breaks in the title attribute are preserved. Therefore, the title should not be split across multiple lines.