JSFiddle - React, Tailwind, and code Playground

HTML

<div class="libro">
    <img class="nuevo" src="http://acf.bones.com/skin/frontend/soc/default/images/new-product-l-corner.png" />
    <div class="contenido">
        <p>Leído 680 veces</p>
    </div>
</div>

CSS

.libro {
    background: #666;
    position: relative;
    width: 150px;
    height: 200px;
}

.nuevo {   
    left: 0px;
    position: absolute;
    top: 0px;   
}