ok, i found that i can use
to trigger the stuff in the xhtml page of my dynamic css file. but now the problem is when i do that something somewhere puts a
at the end of the file. this of course breaks the css page. any ideas how i can turn that off?
got it, add
<f:view contentType="text/css" xmlns:s="http://jboss.com/products/seam/taglib" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core">
to the beginning of the file and close it at the bottom. works great