JSFiddle - React, Tailwind, and code Playground

HTML

<div class='showHide'>
<span class='expand'><span id="changeArrow">&#8593;</span>Line expand and collapse</span>

	<fieldset id="fdstLorem">

        Lorem ipsum...
	</fieldset>
</div>

JavaScript

$(document).ready(function() { 
	$('.showHide>span').click(function () {
		$(this).next().slideToggle("slow");
		return false; 
	});
    $(".showHide>span").toggle(function() {
            $(this).children("#changeArrow").text("↓");
        }, function() {
            $(this).children("#changeArrow").text("↑");
        });
    
});