<div class="container">
  <div class="item-2col">1</div>
  <div class="item">2</div>
  <div class="item">3</div>
  <div class="item">4</div>
  <div class="item">5</div>
  <div class="item">6</div>
  <div class="item">7</div>
  <div class="item">8</div>
</div>
.container {
  display: grid;
  grid-template-columns: auto auto auto;
  grid-template-rows: 100px 150px;
}

.item {
  font-family: Georgia, "Times New Roman", Times, serif;
  font-size: x-large;
  text-align: center;
  padding: 20px;
  border: 1px solid orange;
  background-color: bisque;
}

.item-2col {
  font-family: Georgia, "Times New Roman", Times, serif;
  font-size: x-large;
  text-align: center;
  padding: 20px;
  border: 1px solid orange;
  background-color: bisque;

  grid-column-start: 1;
  grid-column-end: 3;

  /*   grid-row-start: 1; */
  /*   grid-row-end: 3; */
}
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