klass_sym = klass.to_s.to_sym
          current_styles[klass_sym] ||= Hash.new
          current_styles[klass_sym][attachment_name.to_sym] ||= Array.new
          current_styles[klass_sym][attachment_name.to_sym] << style_name.to_sym
          current_styles[klass_sym][attachment_name.to_sym].map!(&:to_s).sort!.map!(&:to_sym).uniq!