JSFiddle - React, Tailwind, and code Playground

HTML

<div class="d1"></div>
<div class="d2"></div>

CSS

div {
    display: inline-block;
    margin: 200px 0 0 300px;
}
.d1 {
    -webkit-box-shadow: 0 0 200px 100px #000;
    box-shadow: 0 0 200px 100px #000;
}
.d2 {
    box-shadow: 0 0 200px 100px #000;
    -webkit-box-shadow: 0 0 200px 100px #000;
}