JSFiddle - React, Tailwind, and code Playground

HTML

<div class="top">
    <img src="http://www.androidpolice.com/wp-content/uploads/2014/02/nexusae0_wm_DSC02232.jpg">
</div>

CSS

div.top {
    position: fixed;
    width: 100%;
    height: 100%;
    border: 1px solid blue;
}
img {
    transform: rotate(90deg);
    max-width: 100%;
    max-height: 100%;
}