img.boyaa,
.boyaa img {
  filter: blur(5px);
  opacity: 0.5;
  transition:
    filter 0.8s cubic-bezier(0.25, 1, 0.5, 1),
    opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: filter, opacity;
}
img.boyaa.hakka,
.boyaa.hakka img {
  filter: blur(0px);
  opacity: 1.0;
}