Assume I have an \"images\" folder directory under the root of my application. How can I, from within a .css file, reference an image in this directory using an ASP.NET app
In case you didn't know you could do this...
If you give a relative path to a resource in a CSS it's relative to the CSS file, not file including the CSS.
background-image: url(../images/test.gif);
So this might work for you.