table.dataTable tr.dtrg-group th {
    background-color: #e0e0e0;
    text-align: left
}

table.dataTable tr.dtrg-group.dtrg-level-0 th {
    font-weight: bold
}

table.dataTable tr.dtrg-group.dtrg-level-1 th, table.dataTable tr.dtrg-group.dtrg-level-2 th, table.dataTable tr.dtrg-group.dtrg-level-3 th, table.dataTable tr.dtrg-group.dtrg-level-4 th, table.dataTable tr.dtrg-group.dtrg-level-5 th {
    background-color: #f0f0f0;
    padding-top: .25em;
    padding-bottom: .25em;
    padding-left: 2em;
    font-size: .9em;
}

table.dataTable tr.dtrg-group.dtrg-level-2 th {
    background-color: #f3f3f3;
    padding-left: 2.5em
}

table.dataTable tr.dtrg-group.dtrg-level-3 th {
    background-color: #f3f3f3;
    padding-left: 3em
}

table.dataTable tr.dtrg-group.dtrg-level-4 th {
    background-color: #f3f3f3;
    padding-left: 3.5em
}

table.dataTable tr.dtrg-group.dtrg-level-5 th {
    background-color: #f3f3f3;
    padding-left: 4em
}