JSFiddle - React, Tailwind, and code Playground

by Masood Alam

HTML

<div class="parentDiv">
<div id="menu">
    
</div>    
    
</div>

CSS

#menu {
    position: relative;
    left:100px;
    width:200px;
    background-color:red;
    height:100px;
    
}

.parentDiv {
    position: relative
}

JavaScript

var elementObj = document.querySelector("#menu");
elementObj.style.backgroundColor = "blue";
elementObj.left = "200px";