def yui_css(*args, &block)
      filter(Rake::Pipeline::Web::Filters::YUICssFilter, *args, &block)
    end
def yui_css(*args, &block)
      filter(Rake::Pipeline::Web::Filters::YUICssFilter, *args, &block)
    end
Add a new {YUICssFilter} to the pipeline.
 @see YUICssFilter#initialize