JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container"></div>

CSS

body, html {
    height: 100%;
    margin: 0;
    padding: 0;
}

.container {
    height: 65%;
    width: 100%;
    position: relative;
    top: -22.75%; /* 65*35/100 */
    background-image: url(http://placehold.it/1024x768);
    background-size: cover;
    background-position: center bottom;
}