.pulse i {
  position: relative;
  z-index: 20;
  top: 16px;
  font-size: 30px;
}
.pulse {
  position: fixed;
  cursor: pointer;
  display: block;
  width: 60px !important;
  height: 60px;
  bottom: 40px;
  right: 40px;
  background-color: rgba(0, 200, 0, 1);
  color: white;
  border-radius: 50px;
  text-align: center;
  transition-duration: 0.5s;
  animation: pulse-btn 3s infinite;
  z-index: 9000;
}

.pulse:hover {
  background-color: rgba(0, 150, 0, 1);
  color: white;
}

.my-float {
  margin-top: 15px;
}

@-webkit-keyframes pulse-btn {
  0% {
    -webkit-box-shadow: 0 0 0 0 rgba(0, 200, 0, 1);
  }
  70% {
    -webkit-box-shadow: 0 0 0 20px rgba(0, 200, 0, 0);
  }
  100% {
    -webkit-box-shadow: 0 0 0 0 rgba(0, 200, 0, 0);
  }
}

.pulse a {
  color: #fff;
}