JSFiddle - React, Tailwind, and code Playground

HTML

<div id="my-div">alerta teste</div>

JavaScript

var qtd = 0;
var pisca = setInterval(function () {
    $('#my-div').animate({
        'opacity': 'toggle'
    })
    qtd++;
    if (qtd > 3) clearInterval(pisca);
}, 250);