Before starting, I would like to make sure that webflow enables me to do some set of features. For example, can I code jquery effects in webflow? I would like to add animated numbers (a counter that dynamically counts up to a certain x number). Can these kind of features be included using webflow, or is it much more of a drag and drop tool that just simplifies html and css?
Yep, you can insert custom jQuery code into any webflow site. We include the latest 1.x version of jQuery in our published and exported code.
During development, you must either publish or export your site to see the custom JS in action. I would recommend using an external .js file (perhaps hosted on dropbox) so that you can immediately save changes instead of re-publishing each time.
Also: For simple animation effects, I would totally recommend our Interactions system!