.deko-whatsapp-button {
  position: fixed;
  bottom: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  box-shadow: 0 8px 24px rgba(0,0,0,.22);
  transition: transform .2s ease, box-shadow .2s ease;
}
.deko-whatsapp-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,0,0,.28);
}
.deko-whatsapp-button svg {
  width: 34px;
  height: 34px;
  fill: #fff;
}
.deko-whatsapp-right { right: 24px; }
.deko-whatsapp-left { left: 24px; }

@media (max-width: 767px) {
  .deko-whatsapp-button {
    width: 54px;
    height: 54px;
    bottom: 18px;
  }
  .deko-whatsapp-right { right: 18px; }
  .deko-whatsapp-left { left: 18px; }
}