Hi guys. Just recently, I ran across this amazing piece of work: http://codepen.io/yesimaaron/pen/CFpeL
I tried to save the page for offline studying. However, when I reopen the offline html file, the menu button doesn't work.
Specifically, everything load like normal, but I can keep clicking the menu button on the top right corner till kingdom come and nothing will happen. If the menu is already open when I save it, it will stay open. If it's not, nothing can get it to load.
I tried to copy the code to my site, and the same thing happened. No matter how many time I click the button, nothing will come down.
Can anyone explain this, please?