JSFiddle - React, Tailwind, and code Playground

HTML

<div class="row col-12" id="mobileimg">
    <img src="http://lorempixel.com/400/200/" alt="">
</div>

CSS

#mobileimg {
    display: none;
}

@media screen and (max-width: 768px) {
    #mobileimg {
        display: flex;
        margin-top: 20px;
    }
	img {
		width: 100%;
		height: 100%;
	}
}