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// Make jQuery work
var script = document.createElement('script');
script.src = "https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js";document.getElementsByTagName('head')[0].appendChild(script);

// Create a div
$0.appendChild(document.createElement('div')); 

// Disable CSS
$('style,link[rel="stylesheet"]').remove();