table.dataTable thead span.dt-order-number {
  position: absolute;
  top: 2px;
  right: 19px;
  color: var(--dt-order-numbers-light-color, white);
  background: var(--dt-order-numbers-light-background, #555);
  border-radius: 10px;
  width: 1.5em;
  text-align: center;
  height: 1.5em;
  font-size: 11px;
  line-height: 15px;
}

:root.dark table.dataTable thead span.dt-order-number,
:root[data-theme=dark] table.dataTable thead span.dt-order-number,
:root[data-bs-theme=dark] table.dataTable thead span.dt-order-number {
  color: var(--dt-order-numbers-dark-color, black);
  background: var(--dt-order-numbers-dark-background, #d3d3d3);
}