lass="test firstRow"></div>
  <div class="test secondRow"></div>
</div>

<div class="grid" style="grid-template-rows: 15px 80px;">
  <div class="item secondRow">XXX XXX XXX</div>
  <div class="spanningItem">XXX XXX XXX</div>
  <div class="test firstRow"></div>
  <div class="test secondRow"></div>
</div>

<br clear="all">
<br clear="all">

<div class="grid" style="grid-template-rows: 70px;">
  <div class="item">XXX XXX</div>
  <div class="test firstRow"></div>
</div>

<div class="grid" style="grid-template-r