Think of your HTML as being data along the same lines of JSON, XML or any other data feed. Then tell your designer/front-end person to just create the necessar

Think of your HTML as being data along the same lines of JSON, XML or any other data feed. Then tell your designer/front-end person to just create the necessary CSS & Javascript to apply to it. Thus you remain in full control of the data (HTML) and you've completely separated the design (CSS) & behaviour (JS) logic that gets applied to it.