/* Keyword values */
empty-cells: show;
empty-cells: hide;

/* Global values */
empty-cells: inherit;
empty-cells: initial;
empty-cells: unset;

show | hide

<table class="table_1">
  <tr>
    <td>Moe</td>
    <td>Larry</td>
  </tr>
  <tr>
    <td>Curly</td>
    <td></td>
  </tr>
</table>

<table class="table_2">
  <tr>
    <td>Moe</td>
    <td>Larry</td>
  </tr>
  <tr>
    <td>Curly</td>
    <td></td>
  </tr>
</table>

.table_1 {
  empty-cells: show;
}

.table_2 {
  empty-cells: hide;
}

td,
th {
  border: 1px solid gray;
  padding: 0.5rem;
}