vtenext/include/js/dataTables/plugins/FixedHeader/css/fixedHeader.jqueryui.css

table.fixedHeader-floating {
  position: fixed !important;
  background-color: white;
}

table.fixedHeader-locked {
  position: absolute !important;
  background-color: white;
}

@media print {
  table.fixedHeader-floating {
    display: none;
  }
}