.glitch {
  animation: glitch 2s infinite;
}
@keyframes glitch {
  0% { text-shadow: 2px 0 red, -2px 0 blue; }
  20% { text-shadow: -2px 0 red, 2px 0 blue; }
  40% { text-shadow: 2px 2px red, -2px -2px blue; }
  60% { text-shadow: -2px -2px red, 2px 2px blue; }
  80% { text-shadow: 2px 0 red, -2px 0 blue; }
  100% { text-shadow: 0 0 10px #0ff; }
}