Allow user to customize page sections

Is it possible to allow a user to customize sections of our website to match their look and feel? For example, to modify logos and CSS, possibly pointing back to their site for the actual content. Ideally I would also like a third-party (ASP.NET) tool to manage this, rather than coding a hack myself.

Edited: I want a solution where a customer can just use a menu to modify the attributes they want, so that there is no need for me to interact with the customer at all.开发者_如何学编程

What you want is a CMS (Content Management System), there are lots out there. Just find one that suits you.

I hear Sitefinity is good.