I wanted to share a find of mine. I tried tons of different cms solutions and there's many good ones that fill different purposes. My knowledge is html/css and I want a cms that is as easy for me to manage as it is for for the client. I want a easy way to take my html theme to the cms. I also want it to have add-ons or plugins so you can make it more advanced if need to without the need to code. I thought I have found the perfect cms for me before and know I think I found it, again =D. Its hard to explain but this one I just "get". Its part database driven and part file base driven. Your theme is stored in files which make that part very easy to handle.
Its open source, its still beta but very stable and its called OctoberCMS
Try it out and let me know what you think.
Even if we waiting for a solution from Webflow it could lack some functionality in the beginning like a member driven site(like I building now) or something else that require that you host it yourself.