JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <img src="http://stackoverflow.com/content/stackoverflow/img/apple-touch-icon.png" />
</div>

CSS

.container {
    position: relative;
}
.container:after {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    content: '';
    -moz-box-shadow:    inset 0 0 5px #000000;
    -webkit-box-shadow: inset 0 0 5px #000000;
    box-shadow:         inset 0 0 5px #000000;
}