CodePen Embed - Flexbox grid center

<div class="container">
  <div class="flexbox"></div>
</div>

.container {
  width: 100%;
  max-width: 600px;
  border: 2px solid;
}

.flexbox {
  background-color: red;
  width: 30px;
  height: 30px;
}

/* magic is here */
.container {
  display: flex;
  justify-content: center;
}

This Pen is owned by Naveen Kharwar on CodePen.

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