#btnTopo {
  position: fixed;
  bottom: 90px;
  right: 30px;
  width: 48px;
  height: 48px;
  z-index: 1050;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  font-size: 24px;
}

#btnTopo.show {
  opacity: 1;
  pointer-events: auto;
}

#btnTopo:hover {
  background-color: #0fa05c !important;
}