[bliti]

It depends how this is setup. If you are using a template engine then I don't see why would this be a big deal if its a technical decision followed throughout the project. If you are not using a template engine and using Javascript to throw things around (like a bunch of Jquery piled on top of each other) then it becomes an issue.

Are you using any kind of server side framework (Like Django/Rails)?

Are you using any kind of client side framework (like Angular)?

Are you using any kind of layout framework (like Bootstrap)?