JSFiddle - React, Tailwind, and code Playground

HTML

<div class="photo">
    <div class="disclaimer">NB: People on this photo may not represent you after buying our product</div>
</div>

CSS

.photo {
    background-image: url('http://i.telegraph.co.uk/multimedia/archive/02042/Happy_2042210c.jpg');
    height: 400px;
    width: 600px;
    position: relative;
    background-size: cover;
}

.disclaimer {
	position: absolute;
	right: 10px;
	bottom: 10px;
	font-size: 11px;
	transform: rotate(270deg);
	-ms-transform: rotate(270deg);
  	-moz-transform: rotate(270deg);
  	-webkit-transform: rotate(270deg);
  	-o-transform: rotate(270deg);
  	line-height: 15px;
  	height: 15px;
  	width: 15px;
  	overflow: visible;
  	white-space: nowrap;
    color: white;
    font-family: arial;
}