<div class="grid">
  <div class="item item1">1</div>
  <div class="item item2">2</div>
  <div class="item item3">3</div>
  <div class="item item4">4</div>
</div>

.grid {
  display: grid;
  grid-gap: 20px;
  /* 
  grid-template-areas: "one one" "two four" "three four";
  grid-template-columns: 1fr 2fr;
  grid-template-rows: 200px;
  */
  grid: "one one" 200px 
        "two four" 
        "three four" 
        / 1fr 2fr;
}

.item1 {
  grid-area: one;
}

.item2 {
  grid-area: two;
}

.item3 {
  grid-area: three;
}

.item4 {
  grid-area: four;
}