JSFiddle - React, Tailwind, and code Playground

HTML

<div id="div1" class="fade">div1</div>
<div id="div2" class=" fade">div2</div>
<div id="div3" class=" fade">div3</div>

JavaScript

$(".fade").each(function(index) {
    $(this).delay(800*index).fadeTo(200, 0.5).fadeTo(200, 1).fadeTo(200, 0.5).fadeTo(200, 1);
});