index.html

<div class="container">
  <h1 class="title">title</h1>
  <div class="content">0</div>
  <div class="content">1</div>
  <div class="content">2</div>
  <div class="content">3</div>
  <div class="content">4</div>
  <div class="content">5</div>
</div>

style.css

.container{
  display: grid;
  min-height: 100vh;
  width: 100%;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.title{
  grid-column: span 3 / span 3;
  grid-row-start: 2;
}