JSFiddle - React, Tailwind, and code Playground

HTML

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

CSS

.test {
    background-color: yellow;
    height: 50px;
}

JavaScript

var $ = jQuery.noConflict();
var a =$("<p> hi </p>").appendTo("div.test").attr("style","background-color:red");
console.log(a);