JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-beta1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.css">
<div id="resizable">
  <iframe src="http://google.com" frameborder="0"></iframe>
</div>

CSS

#resizable {
  width: 400px;
  height: 300px;
  background: yellow;
}

#resizable iframe {
  width: 100%;
  height: 100%;
}

JavaScript

$(function() {
  $("#resizable").resizable();
});