JSFiddle - React, Tailwind, and code Playground

HTML

<div id="element">123</div>

CSS

#element {
 float: left;
 color: white;
}

.selected {
  background-image:url("http://www.gravatar.com/avatar/bb7148ce65e69d732186e93116462cb2?s=100&d=identicon&r=PG");
  width: 100px;
  height: 100px;
}

JavaScript

$('#element').after('<div class="selected"></div>');