Circle loader

[baillieogrady]

Loaders are useful UI elements to communicate to the user something is loading in. Rather than the content loading in in dribs and drabs, a temporary full screen overlay with a centered loader can be used to disguise this and build suspense.

HTML

<div class="spinner"></div>

CSS

.spinner {
  position: relative;
  height: 100px;
  width: 100px;
  margin: 0 auto;
  border-radius: 50%;
  display: inline-block;
  border: 5px solid transparent;
  border-top: 5px solid #ff6600;
  animation: spin 2s linear infinite;
}
.spinner:before {
  box-sizing: inherit;
  position: absolute;
  height: 90px;
  width: 90px;
  border-radius: 50%;
  border: 5px solid transparent;
  border-top: 5px solid #ffa600;
  display: block;
  content: "";
  animation: spin 2.5s linear infinite;
}
.spinner:after {
  box-sizing: inherit;
  position: absolute;
  height: 80px;
  width: 80px;
  top: 5px;
  left: 5px;
  border-radius: 50%;
  border: 5px solid transparent;
  border-top: 5px solid #09c;
  display: block;
  content: "";
  animation: spin 3.5s linear infinite;
}
@keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}


Original Article: https://baillieogrady.com/circle-loader/