-width="215" data-expected-height="115">
  </div>
  <div class="absolute" style="grid-column: 2 / 3; grid-row: 3 / span 2;"
    data-offset-x="115" data-offset-y="215" data-expected-width="200" data-expected-height="115">
  </div>
  <div class="absolute" style="grid-column: 3 / span 2; grid-row: 2 / 3;"
    data-offset-x="315" data-offset-y="65" data-expected-width="215" data-expected-height="150">
  </div>
</div>

<div class="grid">
  <div class="absolute" style="grid-column: foo / 1; grid-row: foo / 1;"
 