.whatsapp-float {
  position: fixed;
  width: 60px;
  height: 60px;
  bottom: 20px;
  right: 20px;
  background-color: #26cc63;
  color: #fff;
  border-radius: 50%;
  text-align: center;
  font-size: 30px;
  text-decoration: none;
  box-shadow: 0px 0px 13px rgba(0,0,0,0.9);
  text-shadow: 2px 2px 3px rgba(0,0,0,0.3);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.whatsapp-float:hover {
  background-color: #167e3e;
}