CI 3.1 for Website Building Platform

@JG_NJ_1990

https://jqueryui.com/droppable/

I would say, start with classics, let CodeIgniter render the pages and use jQuery UI and AJAX for the front-end interactions. The field of JavaScript frameworks seems to be dynamic at the moment, making a choice is hard. In the future, if you decide to make refactoring, you may choose a JavaScript framework that offers progressive enhancement, so you would be able to upgrade your project gradually.

I think, it is safe you to start with these technologies that you are familiar with. Better focus on making your application concept to work, technicality could be postponed.