pulsing_loader

by John Doe

HTML

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

CSS

body {
  background-color: black;
}

.spinner {
  width: 40px;
  height: 40px;
  opacity: .6;
  background-color: rgb(64, 131, 183);
  
  outline: none;
  box-shadow: 0 0 10px 1px #9ecaed;
  
  border-radius: 100%;  
  -webkit-animation: sk-scaleout 2.0s infinite ease-in;
  animation: sk-scaleout 2.0s infinite ease-in;
}

@-webkit-keyframes sk-scaleout {
  0% { -webkit-transform: scale(0) }
  50% { background-color: rgba(64, 131, 183, 0.5); }
  100% {
    -webkit-transform: scale(5.0);
    opacity: 0;
  }
}

@keyframes sk-scaleout {
  0% { 
    -webkit-transform: scale(0);
    transform: scale(0);
  }
  50% { background-color: rgba(64, 131, 183, 0.5); }
  100% {
    -webkit-transform: scale(5.0);
    transform: scale(5.0);
    opacity: 0;
  }
}