JSFiddle - React, Tailwind, and code Playground

HTML

<div>
</div>

CSS

div {
    position: relative;
    width: 300px;
    height: 300px;
    background: url('http://i.ytimg.com/vi/cDT7SoSewRs/maxresdefault.jpg') no-repeat center;
    background-size: cover;
    border: 2px #666 solid;
}
div::before {
    content:"";
    position: absolute;
    z-index: 10;
    top: 0;
    left: 0;
    width: 300px;
    height: 300px;
    background: rgba(0,0,0,0.5);
}