JSFiddle - React, Tailwind, and code Playground

HTML

<div class="content first" data-time="200"> </div>
<div class="content second" data-time="300"> </div>
<div class="content third" data-time="400"> </div>
<div class="content fourth" data-time="500"> </div>

CSS

div{border:1px solid red;width:10px;height:10px;}

JavaScript

$('.content').each(function(){
    var time = $(this).attr("data-time")
    $(this).delay(time).hide("slow")
});