LayoutTests/fast/table/expanding-table-with-grid-cell.html

<style>
.max_content {
  width: max-content;
}

.nested_flex {
  display: flex;
  flex-direction: column;
}

table {
  margin-left: 100px;
}

td {
  background-color: green;
  color: transparent;
  font-familiy: Ahem;
  font-size: 20px;
  height: 100px;
}

.nested_grid {
  display: grid;
}
</style>
<!-- nested_grid box should stay as wide as its content is -->
<div class=max_content>
  <div class=nested_flex>
    <table>
      <td>
        <div class=nested_grid>XXX</div>
      </td>
    </table>
  </div>
</div>