JSFiddle - React, Tailwind, and code Playground

HTML

<div class="test"></div>
<div class="test"></div>
<div class="test"></div>
<div class="test"></div>

CSS

.test {
    position: relative;
    width: 200px;
    height: 200px;
    background-color: pink;
    margin-bottom: 10px;
}

JavaScript

$(document).ready(function () {

    var test = $(".test");

    $('.test').html(n);

});