/**
 * main.js
 *
 * Only runs in modern browsers via feature detection
 */

if('querySelector' in document && 'localStorage' in window && 'addEventListener' in window) {
  
  
  
}
@@ -168,14 +168,98 @@
 ) %7B%0A
+%0A
   
-%0A  %0A  
+// Add class %22js%22 to html element%0A  document.querySelector('html').classList.add('js');%0A
 %0A%7D
+%0A

Add class "js" to html element