JSFiddle - React, Tailwind, and code Playground

HTML

<iframe width="1000px" height="1000px" frameborder="0" name="f1e348592ed856c" allowtransparency="true" allowfullscreen="true" scrolling="no" title="fb:page Facebook Social Plugin" style="border: medium none; visibility: visible; width: 340px; height: 500px;" src="http://www.facebook.com/v2.3/plugins/page.php?app_id=&amp;channel=http%3A%2F%2Fstatic.ak.facebook.com%2Fconnect%2Fxd_arbiter%2FKTWTb9MY5lw.js%3Fversion%3D41%23cb%3Df46f9e2a3b7b8%26domain%3D10.0.0.101%26origin%3Dhttp%253A%252F%252F10.0.0.101%252Ff24c367e49e04c%26relation%3Dparent.parent&amp;container_width=1584&amp;hide_cover=false&amp;href=https%3A%2F%2Fwww.facebook.com%2Ffacebook&amp;locale=en_US&amp;sdk=joey&amp;show_facepile=true&amp;show_posts=true" class=""></iframe>

JavaScript

var $head = $("iframe").contents().find("head");                
$head.append($("<link/>", 
    { rel: "stylesheet", href: "style.css", type: "text/css" }));
});