*fiddles some* Huh. It's working for me, so I'm thinking something must be off in the css processing. Make sure your layer is a child of Tabula Rasa, and try replacing what you have with this. This is the layer that's working for me: http://www.dreamwidth.org/customize/advanced/layersource?id=263310. Oh, and make sure you /don't/ uncheck "Use layout's stylesheet(s)".