There are many 3-tiered architectures, but MVC is not [HTML, CSS, browser] nor [interface, business logic, data].
MVC = [model/business logic, view/representation, control/interaction logic]. The design pattern is typically used in rich client applications, not in web sites.
This does not mean that the separation of concern as seen in [HTML, CSS, browser] is pointless, far from that. It is just something different.