pageoneresults - 1:33 pm on Dec 28, 2011 (gmt 0)
I do the same but, <acronym> has been deprecated in HTML5. The <abbr> element is all alone now. No more confusion on what is an <abbr> and what is an <acronym>.
border-bottom:1px solid #ddd;
I use the cursor:help diligently. Anytime a title element appears, there's usually a requirement for the cursor:help. Not all the time, but frequently.
^ I wouldn't do that. There's a reason why <abbr> is styled by default with a bottom border. It's a visual indicator for the user. Without it, the user won't be enticed to hover and invoke the title attribute of the <abbr>.