JSFiddle - React, Tailwind, and code Playground

by cristianromagnoli

HTML

<iframe width="780" height="480" src="http://www.youtube.com/embed/ttRSZNLI7O4?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>

CSS

.image{background: yellow; display:block;}
.image:after{
    display:block;
    position:relative;
    z-index:200;
    content:'';
    width:200px;
    height: 200px;
    background:red;
}