Table row background color not working in Bootstrap 5.3

[ghanchi2000]

I have defined following css class

.confirmTableHeader{
background:#fdd0d0;
font-weight: 600;
}

after applying it to table row color changing is not working

[ghanchi2000]

Got the answer

replaced background with --bs-table-bg now its working

.confirmTableHeader{
--bs-table-bg:#fdd0d0;
font-weight: 600;
}