JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

CSS

html,body {
    height: 100%;
}
body{
    background: url('http://thumbs.dreamstime.com/z/flat-website-interface-windows-vector-online-shopping-style-modern-elements-web-site-click-banner-icon-ui-ux-elements-46030757.jpg');
    background-size:cover;
    margin: 0;
}
div{
    position:relative;
    width: 100%;
    height: 100%;
    overflow:hidden;
}
div:after{
    content:'';
    position:absolute;
    left: 34px;
    top: 31px;
    border-radius: 100%;
    width: 200px;
    height: 200px;
    box-shadow: 0px 0px 0px 4000px rgba(0, 0, 0, 0.61);
}