JSFiddle - React, Tailwind, and code Playground

HTML

<div>Bla</div>

CSS

div {
    top: auto;
    bottom:20px;    
    right:20px;
    left:0px;
    position:absolute;
}

JavaScript

$(function(){
    var getCss = function($elem, prop) {
        var wasVisible = $elem.css('display') !== 'none';
        try {
            return $elem.hide().css(prop);
        } finally {
            if (wasVisible) $elem.show();
        }
    };
    
    alert(getCss($('div'), 'top'));
});