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document updated 15 years ago, on Jan 9, 2009
The 'title' attribute can be used to make the browser show a tooltip when the user hovers over an item.

Elements it works on:

element test Firefox 3 MSIE 7
<a> test Y Y
<img> Y Y
<td>
test
Y Y
<div>
test
Y Y
<span> test Y Y