.snowflake-layer {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  overflow: hidden;
  z-index: 9999;
}

.snowflake {
  position: absolute;
  top: -5vh;
  font-size: 10px;
  opacity: 0.8;
  animation-name: flickr, fall;
  animation-timing-function: linear, linear;
  animation-iteration-count: infinite, infinite;
}

.snowflake--sm {
  font-size: 1em;
}

.snowflake--md {
  font-size: 1.5em;
}

.snowflake--lg {
  font-size: 2.25em;
}

@keyframes flickr {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.2;
  }
}

@keyframes fall {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }
  100% {
    transform: translate(20vw, 110vh) rotate(360deg);
  }
}