First, a note about the web platform Using the web platform as much as possible is the most inclusive approach to building websites. The more that we use tools to abstract away the platform, the more complicated we make the job. For someone to write CSS using a framework, they still need to understand CSS. They will be able to get pretty far without understanding it, but eventually it will be needed. So, this means that both CSS and the framework must be understood. For anyone new to a project, this is a barrier. React might be easier to understand...