JSFiddle - React, Tailwind, and code Playground

HTML

<div id="main"> <a href="#" onclick="display()">Display Div</a>

</div>
<div id="boxwrapper"></div>

CSS

body {
    background: black;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-position: center;
    background-size: 100%;
    color: white;
    font-family:'Segoe UI';
    font-size: 24px;
}
.box {
    width: 100%;
    margin: auto;
    top: 0px;
    left: 20%;
    right: 0px;
    bottom: 0px;
    background-color: white;
    opacity: 0.4;
    position: fixed;
    overflow-y: scroll;
    overflow-x: scroll;
}
#boxwrapper {
    background: white;
    height: 200px;
    width: 200px;
    margin: 50px;
}

JavaScript

function display() {
    if ($('#boxwrapper ').css('display') === 'none') {
        $('#boxwrapper').show();
    } else {
        $('#boxwrapper').hide();
    }
}