<div class="layout">
  <div class="child">
    <span></span>
    <span></span>
    <span></span>
  </div>
  <div class="child">
    <span></span>
    <span></span>
    <span></span>
  </div>
  <div class="child last-row">
    <span></span>
    <span></span>
    <span></span>
  </div>
</div>
.layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-gap: 8px;
}
.child {
  background: orange;
  text-align: center;
  padding: 25px;
  
  display: flex;
  justify-content: space-between;
}
.last-row {
  grid-column: 1 / 3;
}
.child > span {
  height: 50px;
  background: darkred;
  flex: 0 1 30%;
}

External CSS

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External JavaScript

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