.pulse {
  margin:100px;
   width: 100px;
  height: 25px;  
  background: #ffffff;

  cursor: pointer;
  box-shadow: 0 0 0 rgba(252,8,8, 0.4);
  animation: pulse 1s infinite;
}
.pulse a { color: #69ce06;font-weight:bold}
.pulse a > * { color: #69ce06;}
.pulse:hover {
  animation: none;
}

@-webkit-keyframes pulse {
  0% {
    -webkit-box-shadow: 0 0 0 0 rgba(252,8,8, 0.4);
  }
  70% {
      -webkit-box-shadow: 0 0 0 10px rgba(252,8,8, 0);
  }
  100% {
      -webkit-box-shadow: 0 0 0 0 rgba(252,8,8, 0);
  }
}
@keyframes pulse {
  0% {
    -moz-box-shadow: 0 0 0 0 rgba(252,8,8, 0.4);
    box-shadow: 0 0 0 0 rgba(252,8,8, 0.4);
  }
  70% {
      -moz-box-shadow: 0 0 0 10px rgba(239,8,8, 0);
      box-shadow: 0 0 0 10px rgba(252,8,8, 0);
  }
  100% {
      -moz-box-shadow: 0 0 0 0 rgba(252,8,8, 0);
      box-shadow: 0 0 0 0 rgba(252,8,8, 0);
  }
}