#confetti-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
  z-index: 1054; /* Bellow modal, above its shadow */
}

.confetti {
  position: absolute;
  width: 10px;
  height: 10px;
  background-color: red;
  animation: fall 3s linear forwards;
}

@keyframes fall {
  0% {
    opacity: 1;
    transform: translateY(0) rotate(0deg);
  }
  100% {
    opacity: 0;
    transform: translateY(500px) rotate(720deg);
  }
}