#myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  border: none;
  outline: none;
  background-color: var(--bs-warning);
  color: white;
  cursor: pointer;
  padding: 8px;
  border-radius: 4px;
  font-size: 14px;
}

#myBtn:hover {
  background-color: var(--bs-warning-border-subtle);
  color: var(--bs-primary);
}