.table-dark {
 color: #fff;
 background-color: #333;
margin-bottom: 0;
}

.table.table-dark>tbody>tr>td, .table.table-dark>tbody>tr>th, .table.table-dark>tfoot>tr>td, .table.table-dark>tfoot>tr>th, .table.table-dark>thead>tr>td, .table.table-dark>thead>tr>th {
 border-color: #4f4f4f;
}

@media only screen and (min-width:960px)
{.center-text {
 width: 63%;
margin: 0 auto;
}
}