JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <img class="thumb" src="http://lorempixel.com/300/200/" />
    <span>Video</span>
</div>

CSS

.container {
    position: relative;
}
.container img {
    display: block;
}
.container span {
    color: white;
    background-color: black;
    padding: 5px 10px;
    position: absolute;
    left: 0;
    bottom: 0;
}