CodePen Embed - Basic State Swapper

<div onclick="this.classList.toggle('active');"></div>

.active {
  background: rebeccapurple;
}
div {
  height: 100px;
  width: 100px;
  border: 5px solid #ccc;
}
body {
  height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
}

This Pen is owned by Chris Coyier on CodePen.

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