JSFiddle - React, Tailwind, and code Playground

HTML

<div class="red">1</div>
<div class="blue">2</div>

CSS

.red{
    width:100px;
    height:100px;
    background:red;
}
.blue{
    width:100px;
    height:100px;
    background:blue;
}

JavaScript

$('.blue').insertBefore('.red');