Pulse effect css style for html elements. just add the class to your element.

pulse.css

.pulse {
  // margin:100px;
  display: block;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
/*   box-shadow: 10 10 10 rgba(204,169,44, 0.4); */
  animation: pulse 2s infinite;
}

@-webkit-keyframes pulse {
  0% {
    -webkit-box-shadow: 0 0 0 0 rgba(255, 59, 43, 1);
  }
  70% {
      -webkit-box-shadow: 0 0 0 50px rgba(255, 59, 43, 0);
  }
  100% {
      -webkit-box-shadow: 0 0 0 0 rgba(255, 59, 43, 0);
  }
}
@keyframes pulse {
  0% {
    -moz-box-shadow: 0 0 0 0 rgba(255, 59, 43, 1);
    box-shadow: 0 0 0 0 rgba(255, 59, 43, 1);
  }
  70% {
      -moz-box-shadow: 0 0 0 70px rgba(255, 59, 43,0);
      box-shadow: 0 0 0 70px rgba(255, 59, 43, 0);
  }
  100% {
      -moz-box-shadow: 0 0 0 0 rgba(255, 59, 43, 0);
      box-shadow: 0 0 0 0 rgba(255, 59, 43, 0);
  }
}