JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#" onclick="">Click here to toggle visibility of element #foo</a>

<div id="foo"></div>

CSS

body {
    margin:0;
}
#foo {
    min-width:400px;
    height:100%;
    background-color:#9C0;
    display:none;
    position:absolute;
    right:0px;
    top:0px;
}

JavaScript

$("a").on('click', function() {
    $("#foo").slideToggle();
});