.fixed-thead table {
  width: 100%;
  border-collapse: collapse;
}

.fixed-thead, .fixed-thead-head {
  position: relative;
  overflow: hidden;
}

.fixed-thead-side, .fixed-thead-corner {
  position: absolute;
  left: 0;
  overflow: hidden;
}

.fixed-thead-corner { top: 0; }

.fixed-thead-body { overflow: auto; }