SOURCE

<div class="grid">
  <div class="item">a</div>
  <div class="item">b</div>
  <div class="item">c</div>
  <div class="item">d</div>
</div>

.grid {
  display: grid;
  grid-template-rows: 140px 140px;
  grid-auto-flow: column;
  grid-auto-columns: 200px;
}

.item {
  margin: 10px;
  background: #ddd;
}

.item:nth-child(1) {
  grid-column: 1 / 5;
  grid-row: 1;
}

.item:nth-child(2) {
  grid-column: 5;
  grid-row: 1 / 3;
}

.item:nth-child(3) {
  grid-column: 1 / 3;
  grid-row: 2;
}

.item:nth-child(4) {
  grid-column: 3;
  grid-row: 2;
}