JSFiddle - React, Tailwind, and code Playground
HTML
<div class="tab-pane tab active" id="tab1">
<div class="tab1-overlay"></div>
</div>
<a class="button-next">next</a>
JavaScript
$(document).ready(function()
{
$('a.button-next').click(function()
{
console.log($("#tab1").attr('class'));
if($("div.tab-pane").hasClass('active'))
{
console.log($("div.tab-pane").attr('class'))
}
});
});