ea: 2/4">0 0</item>
</grid>

<grid>
  <item>1</item>
  <item>2 2</item>
  <item style="grid-area: 1/3/3">3 3</item>
  <item>4</item>
  <item style="width: 2ch; grid-area: 2/1">5 5</item>

  <item class="hidden" style="grid-area: 2/4; width: 2ch">0</item>
  <item class="hidden" style="grid-area: 2/4">0 0</item>
</grid>

<grid>
  <item>1</item>
  <item>2 2</item>
  <item style="grid-row: span 2">3 3</item>
  <item>4</item>
  <item style="width:2ch; grid-column:2">5 5</item>

  <item class="hidden" style="grid