drag drop jquery

http://simbyone.com/demo/drag-and-drop-newsletter-builder-using-jquery/


https://www.wpfreeware.com/tutorial/jquery-drag-and-drop-examples-plugins-tutorials/

HTML 5 Template like kanbanflow

http://foundation.zurb.com/apps/page-templates.html

Firebase

https://www.youtube.com/watch?v=Yt75ZIGdJ4Y