They are not fine. Your css styles are tightly coupled with html elements. Your js is tightly coupled with html elements. So why keep all html elements, css and

They are not fine. Your css styles are tightly coupled with html elements. Your js is tightly coupled with html elements. So why keep all html elements, css and js together and separate from each other? Components provide a better primitive by combining related css, html and js together as one unit. This is not supported by native browsers, hence custom frameworks are necessary and better