<html xmlns="http://www.w3.org/1999/xhtml" style="position: absolute; font-size: 1000px; column-count: 3;"> <script> function boom() { var newSS = document.createElementNS("http://www.w3.org/1999/xhtml", "style"); newSS.appendChild(document.createTextNode("whattheheck:first-line {}")); document.getElementById("h").appendChild(newSS); } window.addEventListener("load", boom, false); </script> <head id="h" style="overflow-x: scroll; display: block;"><style style="position: absolute; display: block;">zz ]</style><style style="display: none;">[</style><style style="display: none;">[e='zz']:nth-last-child(odd) {}</style><style style="display: none;"></style><style style="display: none;">[c]</style><style style="display: none;">[c]</style><style style="display: none;">[class='zzzzz'] {}</style></head> </html>