.snowflakes {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
}

.snowflake {
  position: absolute;
  top: -10%;
  color: #ccc;
  user-select: none;
  animation-name: fall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  will-change: transform;
}

@keyframes fall {
  to {
    transform: translateY(105vh);
  }
}