JSFiddle - React, Tailwind, and code Playground
HTML
<div id="parent">
<textarea class="item">parent is hidden. width() represents width in px hovewer it's in percent.</textarea>
</div>
CSS
#parent {
display: none;
}
.item {
width: 224%;
}
JavaScript
console.log( $('.item').width(), $('.item').css('width') );