rong {
    border-bottom: 2px solid darkgrey;
}

.border-light {
    border-bottom: 1px solid #ddd;
}

.table-bordered > thead > tr > th,
.table-bordered > tbody > tr > th,
.table-bordered > tfoot > tr > th,
.table-bordered > thead > tr > td,
.table-bordered > tbody > tr > td,
.table-bordered > tfoot > tr > td {
    /*   border-top: 1px solid #ddd; */
    /*   border-bottom: 1px solid #ddd; */
    border-top: 1px solid white;
    border-bottom: 1px solid white;
}

.massive-header > thead > tr > td {
    bac