special-19.css

body.special-19 .grid .thumb .container:not(.selected) img,
body.special-19 .grid .thumb .container::before,
body.special-19 #background,
body.special-19 .title,
body.special-19 .description,
body.special-19 .copyright,
body.special-19 .sidebar .thumb .container::before {
  transition: .1s;
  filter: brightness(.3);
}

body.special-19 img {
  background: none !important;
}

body.special-19 .grid .thumb .container.selected img,
body.special-19 .sidebar .thumb img {
  animation: special-19-kek 3s infinite !important;
}

@keyframes special-19-kek {
  0% {
    filter: brightness(1);
  }

  14% {
    filter: brightness(1);
  }
  15% {
    filter: brightness(.8);
  }
  17% {
    filter: brightness(1);
  }
  19% {
    filter: brightness(.8);
  }
  20% {
    filter: brightness(1);
  }

  32% {
    filter: brightness(1);
  }
  33% {
    filter: brightness(1.2);
  }
  39% {
    filter: brightness(1.2);
  }
  40% {
    filter: brightness(1);
  }
  50% {
    filter: brightness(1);
  }
  51% {
    filter: brightness(1.3);
  }
  58% {
    filter: brightness(1.3);
  }
  59% {
    filter: brightness(1);
  }

  77% {
    filter: brightness(1);
  }
  79% {
    filter: brightness(.8);
  }
  80% {
    filter: brightness(1);
  }
}