><pre>><style>#parent { position: absolute; } #parent::first-letter { </style> <video></video>>>><div id=parent> <i> 9Z 1CU %b 1 *v ` mMx#[j >></div> >><q><dt>><style> .class1 { stroke: none; direction: rtl;</style><script> var docElement = document.body; docElement.contentEditable = "true"; function crash() { test1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "degree"); docElement.appendChild(test1); test2 = document.createElementNS("http://www.w3.org/1999/xhtml", "textarea"); docElement.appendChild(test2); test3 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mover"); test3.setAttribute("class", "class1"); docElement.appendChild(test3); } document.addEventListener("DOMContentLoaded", crash); </script>>