@keyframes scaleIt {
  0% {
    transform: scale(1);
  }
  30% {
    transform: scale(2);
  }
  100% {
    transform: scale(1);
  }
}

.loading {
  display: flex;
  justify-content: center;
  margin-top: 20px;
}

.loading span {
  display: block;
  border-radius: 50%;
  content: '';
  background-color: #92a2bd;
  height: 5px;
  backface-visibility: hidden;
  width: 5px;
  -webkit-animation: scaleIt 0.8s linear infinite;
  animation: scaleIt 0.8s linear infinite;
  margin: 0 4px;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .3);
}

.loading span:nth-child(2) {
  animation-delay: .2s;
}

.loading span:nth-child(3) {
  animation-delay: .4s;
}