.fast-flicker {
  animation: blink 5s 1s infinite;
}

@keyframes blink {
  0%,
  22%,
  36%,
  75% {
    color: #fff;
    text-shadow: 0 0 0.5rem #08bce9, 0 0 0.5rem #08bce9,
      -0.2rem 0.1rem 1rem #08bce9, 0.2rem 0.1rem 1rem #08bce9,
      0 -0.5rem 2rem #08bce9, 0 0.5rem 2rem #08bce9;
  }
  28%,
  33% {
    color: #fff;
    text-shadow: none;
  }
  82%,
  97% {
    color: #fff;
    text-shadow: none;
  }
}