#whatsapp-button {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  bottom: 40px;
  left: 40px;
  border-radius: 50%;
  transition: 250ms;
  background-color: #25D366;
}

#whatsapp-button:hover {
  filter: brightness(0.85);
}

#whatsapp-button a {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#whatsapp-button a svg {
  width: 32px;
  height: 32px;
  color: #FFFFFF;
}