nycJSorg/angular-presentation

@keyframes circle {
  from {
    transform: scale(0);
  }
  to {
    transform: scale(0.5);
  }
}

.circle {
  margin: 0 auto;
  width: 25vw;
  height: 25vw;
  border: 1vw solid rgba(255, 89, 75, 0.1);
  border-radius: 50%;
  position: absolute;
  left: 0;
  top: 0;
}

.one {
  animation: circle 4s infinite linear;
}

.two {
  animation: circle 3s infinite linear;
}

.three {
  animation: circle 2s infinite linear;
}