Scott Cadreau said:
I am trying to add some text that will appear in a "bubble" when a
user hovers his/her mouse over a section on a page. How do I do
that?
Don't.
First write your page so that it works in any mode of use, including
speech, Braille, text-only, and even different graphic renderings
(in any resolution and window or paper width), and naturally gets
indexed well by indexing robots.
Then come back and post the URL, and tell what optional enhancements
you might wish to add, to be experienced by some groups of people.
Most techniques for "bubbles" or something similar work poorly and
typically mess things up in the many environments where the techniques
(such as title attributes, CSS, or JavaScript) don't work. Even expert
advice on such matters is usually faulty: experts fall in love with
their pet techniques and tricks. As an example, here's how the start of
Eric Meyer's page
http://meyerweb.com/eric/css/edge/popups/demo.html
(which Mark Parnell mentioned) works on a text browser (which "sees"
the page much the same way as a search engine does):
Home The main page of the site-- a jumping-off point, as it were--
and not actually a picture of our house Links A collection of things
which interest me, and might interest you Away Who knows? Could be
anywhere; you clicks the link and you takes your chances! Eric He's
been called "an internationally recognized expert," but then he's
also been called a "techno-fascist" Kat She cooks fabulous meals, she
throws great parties, she helps women deliver their babies-- what
can't she do? Other Inevitably, there's stuff that doesn't fit in
with other stuff, so we stuffed it all into this page of random stuff
It's all one pseudo-paragraph (a div), with grotesquely long link
texts. If Eric gets it so wrong, how miserably would most of us fail in
trying that at home?