JSFiddle - React, Tailwind, and code Playground

by carsont

HTML

<div class="dog">
Ham
</div>

CSS

.dog::before {
    content: "!";
    color: red;
    animation: fadeinout 2s linear forwards infinite;
}

@-webkit-keyframes fadeinout {
  0%,100% { opacity: 0; }
  50% { opacity: 1; }
}

@keyframes fadeinout {
  0%,100% { opacity: 0; }
  50% { opacity: 1; }
}