.top_left_corner{background:url(/assets/corner_6px_tl-1b691f0affa7848247dd6e2ef80513c9.png) top left no-repeat}.top_right_corner{background:url(/assets/corner_6px_tr-0780ceea1949bb9259191db588b6a7ac.png) top right no-repeat}.bottom_left_corner{background:url(/assets/corner_6px_bl-dcc34da435830e88670fc13473a8a0a4.png) bottom left no-repeat}.bottom_right_corner{background:url(/assets/corner_6px_br-1df275847e09bb06237788556378e7ee.png) bottom right no-repeat}