In a web application with its custom CSS that also defined hyperlinks, Internet Explorer would render disabled hyperlinks greyed-out, whereas Firefox showed them as normal text.
Tracking down this different behavior, I found that you can define CSS styles not only by class and tag, but also by attributes using the [attribute] notation:
*[disabled], a[disabled]:hover, a[disabled]:visited { color:gray; }
If you are looking for CSS definitions for fixed headers, footers and sidebars, take a look at these sample CSS. I’m thinking about including them in the next version of dbscript.