JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">

<div class="textinside">text1</div>
<div class="textinside">text2</div>
<div class="textinside">text3</div>
</div>

CSS

.textinside{
   color: blue;
   font-size: 19px;
   background-color: black;
   position: absolute;
}

.active {
   display: block;
}

JavaScript

$('.textinside').first().addClass('active');