.spinner {
  position: fixed;
  top: 0px;
  left: 0px;
  width: 69px;
  height: 73px;
  background: url(skull_icon.png) no-repeat 0px 0px;

  -webkit-animation: sk-scaleout 1.0s infinite ease-in-out;
  animation: sk-scaleout 1.0s infinite ease-in-out;
  z-index: 9999;
}

@-webkit-keyframes sk-scaleout {
  0% { -webkit-transform: scale(0) }
  100% {
    -webkit-transform: scale(0.5);
    opacity: .25;
  }
}

@keyframes sk-scaleout {
  0% { 
    -webkit-transform: scale(0);
    transform: scale(0);
  } 100% {
    -webkit-transform: scale(0.5);
    transform: scale(0.5);
    opacity: .25;
  }
}