.spinner-grow {
  -webkit-animation: .95s linear infinite spinner-grow;
  animation: .95s linear infinite spinner-grow;
  box-shadow: 0px 0px 14px #555555;    
  background-color: #fff6c4;
  width: 1rem;
  height: 1rem
}
.spinner-grow-1 {
  
}
.spinner-grow-2 {
  animation-delay: 100ms;
}
.spinner-grow-3 {
  animation-delay: 200ms;
}