.balloon-container {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
  overflow: hidden;
  opacity: 1;
  transition: opacity 0.5s ease-in-out;
}

.balloon {
  position: absolute;
  pointer-events: none;
}