JSFiddle - React, Tailwind, and code Playground

HTML

<input type="button" id="test_btn" value="Test"/>
<div id="some_other_div">
    This is some text
</div>

CSS

#some_other_div{
    display:none;
}

JavaScript

$('#test_btn').click(function(){
   $('#some_other_div').toggle() 
});