thead[data-slot=table-header] th:after,thead[data-slot=table-header] th:before{content:"";left:0;position:absolute;width:100%}thead[data-slot=table-header] th{position:relative}thead[data-slot=table-header] tr{border:0}thead[data-slot=table-header] th:before{border-top:1px solid var(--border);top:-1px}thead[data-slot=table-header] th:after{border-bottom:1px solid var(--border);bottom:0}