JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper">
    <div class="parent">parent<div>child</div></div>
    <div class="parent">parent<div>child</div></div>
    <div class="parent">parent<div>child</div></div>
</div>

JavaScript

var div = $('.wrapper').find('.parent');
alert(div.attr('class'));