<div class="grid">
  <article class="item">
    <h2>Element 1</h2>
  </article>
  <article class="item">
    <h2>Element 2</h2>
  </article>
  <article class="item">
    <h2>Element 3</h2>
  </article>
</div>
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 100px);
  grid-gap: 20px;
}

.item:first-child {
  grid-column-start: -3;
  grid-row: -2;
}

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

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

External CSS

  1. https://codepen.io/matuzo/pen/vmpaWe

External JavaScript

This Pen doesn't use any external JavaScript resources.