svg {
  z-index: 1;
  width: 100vw;
  max-width: 100rem;
  height: auto;
  position: absolute;
}
.sparkles path {
  transform-origin: 50% 50%;
  transform-box: fill-box;
  animation: sparkle var(--duration) var(--delay) infinite ease-in-out;
}

@keyframes sparkle {
  0% {
    transform: scale(0);
  }
  50% {
    transform: scale(0);
  }
  70% {
    transform: scale(-1, 0);
  }
  80% {
    transform: scale(1);
  }
  100% {
    transform: scale(0);
  }
}