JSFiddle - React, Tailwind, and code Playground

HTML

<span id="myspan">
    <div>TEST</div> 
</span>

CSS

span{height:15px;width:150px;display:block}

JavaScript

console.log($('span:hidden').length);
var element = document.getElementById('myspan');
console.log(element.offsetWidth === 0 && element.offsetHeight === 0);