JSFiddle - React, Tailwind, and code Playground

HTML

<div id="popup" >
    <div id="img-section" >
        <img src="http://icons.iconarchive.com/icons/artdesigner/tweet-my-web/256/single-bird-icon.png" />
    </div>
    <div id="description">Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen bFinibus Bonorum et Malorum" (The Extremes of
<h1> helpoig</h1>
    </div>
</div>
<div id="fade" class="black_overlay"></div>
<a href="#" class="popitup"> click here</a>

CSS

body {
    min-width: calc(1200px + 10%);
}
.black_overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: black;
    z-index: 1001;
    opacity: .8;
}
#popup, #popup * {
    box-sizing: border-box;
}
#popup {
    display: none;
    position: absolute;
    top: 8%;
    left: 10%;
    width: 1200px;
    height: 600px;
    padding: 0;
    background-color: white;
    z-index:1002;
    overflow:hidden;
    
}
#img-section {
    position:relative;
    width:800px;
    float:left;
    background:black;
    cursor:pointer;
    height:600px;
    padding:5px;
    margin-top: -20px;
    margin-left: -15px;
    margin-right: 10px;
    
}
#description {
    position:relative;
    background-color: #fff;
    width:400px;
    overflow-y: auto;
    position: relative;
    word-wrap: break-word;
    height:600px;
    padding: 20px;
}
#img-section > img {
    display:inline-block;
    height: auto;
    vertical-align:middle;
    width:auto;
}

JavaScript

$("a.popitup").click(function (e) {
    e.stopPropagation();

       $("#popup").css('display', 'block');
    $("#fade").css('display', 'block');
    
});
$("body").click(function () {
    $("#popup").css('display', 'none');
    $("#fade").css('display', 'none');
});
 $("#popup").click(function()
 {
    return false;
 });