JSFiddle - React, Tailwind, and code Playground

HTML

<div class="item">
    <h1>Item1</h1>
    <div class="show_hide">
        Popping in and out 1.
    </div>
</div>

<div class="item">
    <h1>Item2</h1>
    <div class="show_hide">
        Popping in and out 2.
    </div>
</div>

JavaScript

var main = function() {
    $('.show_hide').hide();
    
	$('.item').click(function() {
    	$(this).children('.show_hide').slideToggle();
	});
}

$(document).ready(main);