.alert-control-button i.active {
    color: red;
	-webkit-animation: pulsate-fwd 0.5s ease-in-out infinite both;
	        animation: pulsate-fwd 0.5s ease-in-out infinite both;
}

@-webkit-keyframes pulsate-fwd {
  0% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  50% {
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}
@keyframes pulsate-fwd {
  0% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
  50% {
    -webkit-transform: scale(1.2);
            transform: scale(1.2);
  }
  100% {
    -webkit-transform: scale(1);
            transform: scale(1);
  }
}