JSFiddle - React, Tailwind, and code Playground

HTML

<h1>
    resize this screen
</h1>

CSS

h1 {
    border: solid 1px red;
}
h1:before {
    content: url("http://lorempixel.com/50/50/people");
}
@media (min-width: 321px){
h1:before {
    content: url("http://lorempixel.com/50/50/animals");
}
}