#wa-btn {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 9999;
  display: block;
}

#wa-btn img {
  width: 60px;
  height: 60px;
  transition: all 0.3s ease;
}

#wa-btn img:hover {
  transform: scale(1.15);
}

.scrolled #wa-btn {
  bottom: 40px;
}