.snowflake-layer {
  padding: 0;
  margin: 0;
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
  z-index: 4;
}

.snowflake {
  width: var(--size);
  height: var(--size);
  background: rgb(171, 204, 252);
  border-radius: 50%;
  position: absolute;
  top: var(--top);
  left: -5vw;
  animation: snowfall var(--speed) linear infinite;
  animation-delay: var(--delay);
  filter: blur(var(--blur));
  opacity: var(--opacity);
}

@keyframes snowfall {
  0% {
    transform: translate3d(110vw, var(--top-ini), 0);
  }
  100% {
    transform: translate3d(0, var(--top-end), 0);
  }
}

.snowflake:nth-child(6n) {
  filter: blur(1px);
}

.snowflake:nth-child(2) {
  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(3) {

  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(4) {

  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(5) {

  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(6) {

  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(7) {

  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(8) {

  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(9) {

  animation: snowfall var(--speed) linear infinite;
}

.snowflake:nth-child(10) {

  animation: snowfall var(--speed) linear infinite;
}