<div class="parent">
  <div class="child">
    child 1
  </div>
  <div class="child">
    child 2
  </div>
</div>
.parent {
  background-color: lightblue;
  width: 300px;
}

.child {
  border: 1px solid black;
  padding: 10px;
  background-color: white;
  margin: 20px;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.