.cm2-toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #222;
  color: #fff;
  padding: 10px 14px;
  border-radius: 6px;
  opacity: 0;
  transition: opacity .3s;
  z-index: 9999;
}
.cm2-toast.show { opacity: 1; }