.table-fixed-header{--sticky-top:60px;--filter-height:38px}.table-fixed-header thead tr:first-child th{position:sticky;top:var(--sticky-top);z-index:6;background:#f8f9fa}.table-fixed-header thead tr:nth-child(2) th{position:sticky;top:calc(var(--sticky-top) + var(--filter-height));z-index:5;background:#f8f9fa}