<div class="grid-container">
  <div class="grid-item grid-item-1"></div>
  <div class="grid-item grid-item-2"></div>
  <div class="grid-item grid-item-3"></div>
  <div class="grid-item grid-item-4"></div>
</div>

.grid-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 10px;
}

.grid-item {
  background-color: #0096ff;
  border: solid 2px blue;
  padding: 10em;
}

/** 
 * Example showing how autoplacement works, two columns are 
 * created and all content flows to fill one item per column 
 * and create as many rows as needed.
 **/