Fix missing style detection elem

Author: NekR

index.js

@@ -1,5 +1,5 @@
-const PE = document.documentMode < 11 ? false : 'pointerEvents' in style;
 let CSS = 'position:absolute;left:0;top:-100%;width:100%;height:100%;margin:1px 0 0;border:none;opacity:0;pointer-events:none;';
+const PE = document.documentMode < 11 ? false : 'pointerEvents' in document.documentElement;
 
 if (!PE) {
   CSS += 'visibility:hidden;';