#table, #table th, #table td {
    border: 2px solid #000 !important;
}
#table th, #table td {
    border-right: 2px solid #000 !important;
    border-bottom: 2px solid #000 !important;
}
#table th:last-child, #table td:last-child {
    border-right: 2px solid #000 !important;
}
#table tr:last-child td {
    border-bottom: 2px solid #000 !important;
}