.whatsappDiv {
  position: fixed;
  z-index: 610;
}

.whatsappDiv a {
  float: right;
  cursor: pointer;
  display: inline-block;
  border: 0px solid #888;
  height: 40px;
  width: 40px;
  background: #422f56 url('../img/whatsapp.png') no-repeat center center;
  -webkit-border-radius: 0px;
  -moz-border-radius: 0px;
  border-radius: 0px;
}

.whatsappDiv a:before {
  background: transparent;
  border: 4px solid #000000;
  content: "";
  height: 90px;
  left: -25px;
  filter: alpha(opacity=0);
  opacity: 0;
  position: absolute;
  top: -25px;
  width: 90px;
  z-index: 1;
  border-radius: 50%;
}

.whatsappDiv a:before {
  -webkit-animation: sonar 1s ease-out infinite;
  -moz-animation: sonar 1s ease-out infinite;
  animation: sonar 1s ease-out infinite;
}

@-webkit-keyframes sonar {
  from {
    -webkit-transform: scale(0);
    opacity: 1;
  }
  to {
    -webkit-transform: scale(1);
    opacity: 0;
  }
}

@-moz-keyframes sonar {
  from {
    -moz-transform: scale(0);
    opacity: 1;
  }
  to {
    -moz-transform: scale(1);
    opacity: 0;
  }
}

@keyframes sonar {
  from {
    transform: scale(0);
    opacity: 1;
  }
  to {
    transform: scale(1);
    opacity: 0;
  }
}