I am developing a webpart and I need to make use of custom CSS files
for webpart rendering. Now, when I deploy the resources of webpart to
an assembly subdirectory under _wpresources virtual directory, how do
I reference images in custom CSS file?

I do not want to hard code like below

.class_name
{
cursor:
url("/_wpresources/assembly_name/<version>__<publicKeyToken>/home.gif")
}

Please help on how to make the above url dynamic.