.borde_izq {  border-color: black #003399 black black; border-style: solid; border-top-width: 0px; border-right-width: 5px; border-bottom-width: 0px; border-left-width: 0px}
.borde_der {  border-color: black black  black #003399; border-style: solid; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 5px}