JSFiddle - React, Tailwind, and code Playground

by Abra Cadabra

HTML

<div id="bluediv"></div>

CSS

#bluediv{
    width: 100px;
    height: 100px;
}

JavaScript

window.$ = function(selector) {
    return document.querySelector(selector);
  };

  (function() {
    // select item1 by id and change it's background color to salmon
    var item = $("#bluediv").style.backgroundColor="blue";
    console.log(item);
  }());