JSFiddle - React, Tailwind, and code Playground

HTML

<div id="content">
    <img src="http://ramki-vsem.ru/fon/fon-priroda3.jpg">
</div>

CSS

body {
    background: #99FFFF;
    margin: 0px;
    padding: 0px;
}

#content {
    display: block;
    max-width: 100%;
}

#content img {
    max-width: 100%;
}