.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 999;
}

.whatsapp-float a {
  display: block;
  width: 60px;
  height: 60px;
  line-height: 60px;
  text-align: center;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  font-size: 30px;
  transition: 0.3s;
}

.whatsapp-float a:hover {
  background: #128C7E;
  color: #fff;
  text-decoration: none;
}