JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

CSS

div {
    background: 
        linear-gradient(-195deg, transparent, transparent 85%, black 85%, black),
        url(http://www.hint4.me/uploads/posts/2012-12/1356124045_oblaka.jpg), 
        ;
    width: 400px;
    height: 300px;
    background-size: cover;
}