JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="prova">1</div>
    <div class="prova">2</div>
    <div class="prova">3</div>
        <div class="prova"></div>
</div>

CSS

.showmyprogress {
    border: solid green 1px
}

JavaScript

var primoElem = $('.prova');
var provaIndex = 0;
var provaLast = primoElem.length - 1
primoElem.eq(provaIndex).addClass('showmyprogress');
setInterval(function () {
    $('.showmyprogress').removeClass('showmyprogress');
    provaIndex = (provaIndex === provaLast) ? 0 : provaIndex + 1;
    primoElem.eq(provaIndex).addClass('showmyprogress');
}, 500);