nycJSorg/angular-presentation

.spinner-back-ground {
  position: fixed;
  width: 100%;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.2);
  z-index: 9999;
}

.centered-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100vw;
  height: 100vh;
}

.preload {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  /*change these sizes to fit into your project*/
  width: 100px;
  height: 100px;
}

.preload div {
  border: 0;
  margin: 0;
  width: 40%;
  height: 40%;
  position: absolute;
  border-radius: 50%;
  animation: spin 2s ease infinite;
}

.preload :first-child {
  background: #19a68c;
  animation-delay: -1.5s;
}

.preload :nth-child(2) {
  background: #f63d3a;
  animation-delay: -1s;
}

.preload :nth-child(3) {
  background: #fda543;
  animation-delay: -0.5s;
}

.preload :last-child {
  background: #193b48;
}

@keyframes spin {
  0%,
  100% {
    transform: translate(0);
  }
  25% {
    transform: translate(160%);
  }
  50% {
    transform: translate(160%, 160%);
  }
  75% {
    transform: translate(0, 160%);
  }
}