Bouncing loader

• https://www.30secondsofcode.org/css/s/bouncing-loader

• https://github.com/30-seconds/30-seconds-of-css/blob/master/snippets/bouncing-loader.md

Spécifications

Creates a bouncing loader animation.

• Use @keyframes to define a bouncing animation, using the opacity and transform properties. Use a single axis translation on transform: translate3d() to achieve better animation performance.

• Create a parent container, .bouncing-loader, for the bouncing circles. Use display: flex and justify-content: center to position them in the center.

• Give the three bouncing circle <div> elements the same width and height and border-radius: 50% to make them circular.

• Apply the bouncing-loader animation to each of the three bouncing circles.

• Use a different animation-delay for each circle and animation-direction: alternate to create the appropriate effect.

HTML

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

CSS

@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;
}