CSS para excluir la tabla de la última fila
tr:nth-first-child {/*the first item*/
border-bottom: 2px solid black
}
tr:nth-last-child(2) { /*the second-last item*/
border-bottom: 2px solid black
}
tr:not(:last-child){/* all but not the last */
border-left: 2px solid black;
border-right: 2px solid black
}
Naughty Newt