<div class="grid">
  <div class="grid-box"></div>
  <div class="grid-box"></div>
  <div class="grid-box"></div>
  <div class="grid-box"></div>
  <div class="grid-box"></div>
  <div class="grid-box"></div>
</div>
.grid-box {
  bordeR:1px solid black;
  height: 250px;
}
.grid-box:nth-child(1) {
  grid-row: 2 span;
  height: auto;
}
.grid-box:nth-child(2),
.grid-box:nth-child(3){
  grid-column: 3 span;
}
.grid-box:nth-child(4),
.grid-box:nth-child(5),
.grid-box:nth-child(6){
  grid-column: 2 span;
}
.grid {
  display: grid;
  grid: auto / repeat(auto-fit,minmax(14%, 1fr));
}

External CSS

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External JavaScript

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