JSFiddle - React, Tailwind, and code Playground

HTML

<div style="position:relative; display:none">
    <div id="container" style="position:absolute">
        <div class="element"></div>
    </div> 
</div>

CSS

.element{
    height: 20px;
    position: absolute;
    top: 19px;
    z-index: 0;
}

JavaScript

$(".element").css({left:100, width:400}); 

alert('$(".element").attr("style") = ' + $(".element").attr("style"));

alert('$(".element").css("width")  = ' + $(".element").css("width"));

alert('$(".element").css("left")  = ' + $(".element").css("left"));