Mobile Navigation Drop-Downs

Good morning developers,

I have built a HTML/CSS theme from scratch and I’m having issues with the mobile navigation.

I have a separate section for the nav at Mobile and Desktop size in my markup.

Mobile:
http://i65.tinypic.com/2v36906.png

Desktop:
http://i67.tinypic.com/j9lv7o.png

The issue is… When I click the parent button (Products, About us, Contact) nothing happens. I would like the drop-downs to toggle. Also, this is affecting both my Mobile and Desktop navigation.

JS:
http://i65.tinypic.com/n146rc.png

CSS:
http://i63.tinypic.com/33ky6wp.png