photon - 1:33 pm on Apr 1, 2004 (gmt 0) Hester-- Thanks to you both for your replies.
I'm familiar with that, but I'm not sure it will handle my situation. To expound on my predicament, I have a site I frequent that in Opera has problems similar to the Travelocity issue [webmasterworld.com]. I just need to change one attribute on one div to correct the problem. It seems that the preferences route would require me to recreate a substantial part of the site's style sheet--not out of the question, but not as elegant a solution as I had hoped. :)
I've never heard of that before; I will look into it. Unfortunately, I don't think the site in question is so enabled.
Thanks to you both for your replies.