JSFiddle - React, Tailwind, and code Playground

HTML

<div id="expander" class="closed">></div>

CSS

.closed {color:red;}
.open {color:blue;}

JavaScript

$("#expander.closed").click(function(){
		console.log("opening");
		$("#expander").removeClass();
		$("#expander").addClass("open");
	});
	$("#expander.open").click(function(){
		console.log("closing");
		$("#expander").removeClass();
		$("#expander").addClass("closed");
	});