.blink {
  animation: blink 1s;
}

@keyframes blink {
  0% {
    background-color: hsl(0, 80%, 70%);
  }
  100% {
    background-color: hsla(120, 24%, 96%);
  }
}

@keyframes flash {
  0% {
    background-color: red;
  }
  50% {
    background-color: cyan;
  }
  100% {
    background-color: red;
  }
}