abbr

Difference between <acronym> and <abbr>?

Definitionally they seem the same, yet they are deemed dissimilar enough by the W3C to have separate tag definitions. What is the semantic difference between <acronym> and <abbr> in terms of linguistics, the HTML spec and interpretation. ...

Can we style an abbr tittle ? (abbr title="World Health Organization")

Can we style an abbr tittle ? so that instead of a tooltip we can use abbr ...