Flexbox vs CSS Grid: Stacked Layout

Flexbox vs CSS Grid: Stacked Layout by Wes Bos

HTML

<link rel="stylesheet" href="https://cdn.rawgit.com/wesbos/css-grid/master/assets/style.css">
<div class="stacked">
  <div class="item">1</div>
  <div class="item">2</div>
  <div class="item">3</div>
  <div class="item">4</div>
  <div class="item">5</div>
</div>

CSS

.stacked {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
}
.stacked>* {
  width: 30%;
  margin-bottom: 20px;
}