#rTableDati tbody tr td:nth-child(3) {
    font-size: 15px;
}

#rTableDati tbody tr:nth-child(odd) td:nth-child(3) {
    background-color: #d4edda;
    color: #155724;
}

#rTableDati tbody tr:nth-child(even) td:nth-child(3) {
    background-color: #fff3cd;
    color: #856404;
}