.floating-btn {
    position: fixed;
    display: block;
    bottom: 60px;
    z-index: 999999;
    background: #fff;
  border-radius:0px;
  left: 30px;
  cursor: pointer;
  animation: shadow-pulse 2s infinite;
}
.floating-btn a{
  padding: 10px 30px;
  display:block;
  border-radius:0px;
  text-decoration:none;
    font-size:13px;
    font-weight: 200;
    font-style: normal;
    letter-spacing: 2px;
}
@keyframes shadow-pulse {
  0% {
    box-shadow: 0 0 0 0px rgba(0, 0, 0, 0.2);
  }
  100% {
    box-shadow: 0 0 0 35px rgba(0, 0, 0, 0);
  }
}

@keyframes shadow-pulse-big {
  0% {
    box-shadow: 0 0 0 0px rgba(0, 0, 0}, 0.1);
  }
  100% {
    box-shadow: 0 0 0 70px rgba(0, 0, 0, 0);
  }
}