JSFiddle - React, Tailwind, and code Playground

HTML

<div id="messages">.</div>
<div>This is something</div>
<button id="toggle">Toggle</button>
<div id="somethingToShow" style="display:none">
    Toggle oggle oggle
<script>
$('#messages').append("<p>Go Now</p>");
</script>
</div>

JavaScript

var opened = false;
$("#toggle").click(function(){
    if (!opened) {
       $("#somethingToShow").show('slide');
        opened = true;
    } else {
        $("#somethingToShow").hide('slide');
        opened = false;
    }
});