/* Default: tables at 100% width */
.responsive-table .table {
    width: 100%;
}

/* Large screens only: scale tables to ~75% width, left-aligned */
@media screen and (min-width: 1200px) {
    .responsive-table .table {
        width: 75%;
        margin-left: 0;
        margin-right: auto;
    }
}