JSFiddle - React, Tailwind, and code Playground

HTML

<img id="butShowMeSomeUnits" src="http://jsfiddle.net/favicon.png"/>
<img id="arrowUnitspic" src="http://jsfiddle.net/favicon.png"/>

JavaScript

$(document).ready(function() {
       $("#butShowMeSomeUnits").click(function() { 
            $('#arrowUnitspic').hide();
        });
});