30-seconds-of-code/snippets/bouncing-loader.md

title, tags

title	tags
Bouncing loader	animation,intermediate

Creates a bouncing loader animation.

• Use @keyframes to define an animation with two states, where the element changes opacity and is translated up on the 2D plane using transform: translate3d(). Use a single axis translation on transform: translate3d() to achieve better animation performance.
• Create a parent container, .bouncing-loader, for the bouncing circles and use display: flex and justify-content: center to position them in the center.
• Give the three bouncing circle <div> elements a width and height of 16px and use border-radius: 50% to make them circular.
• Apply the bouncing-loader animation to each of the three bouncing circles, using a different animation-delay for each one and animation-direction: alternate to create the appropriate effect.

<div class="bouncing-loader">
  <div></div>
  <div></div>
  <div></div>
</div>

@keyframes bouncing-loader {
  to {
    opacity: 0.1;
    transform: translate3d(0, -16px, 0);
  }
}

.bouncing-loader {
  display: flex;
  justify-content: center;
}

.bouncing-loader > div {
  width: 16px;
  height: 16px;
  margin: 3rem 0.2rem;
  background: #8385aa;
  border-radius: 50%;
  animation: bouncing-loader 0.6s infinite alternate;
}

.bouncing-loader > div:nth-child(2) {
  animation-delay: 0.2s;
}

.bouncing-loader > div:nth-child(3) {
  animation-delay: 0.4s;
}