.make_round{}.make_round_bottom_only{border-bottom-left-radius:4px;border-bottom-right-radius:4px;}.component_single{border-top-left-radius:4px;border-top-right-radius:4px;border-bottom-left-radius:4px;border-bottom-right-radius:4px;}.component_first{border-top-left-radius:4px;border-top-right-radius:4px;}.component_middle{}.component_last{border-bottom-left-radius:4px;border-bottom-right-radius:4px;}