JSFiddle - React, Tailwind, and code Playground

HTML

<div id="blink">blink</div>

CSS

#blink {
    position: absolute;
    margin: 10px;
    padding: 20px;
    border-radius: 15px;
    background-color: lightgreen;
}

JavaScript

var t = tempoAnimacao = 600;

$("#blink").fadeOut(t).fadeIn(t).fadeOut(t).fadeIn(t).fadeOut(t).fadeIn(t);