>HTML/CSS were engineered to be device-independent and to separate styling from the underlying semantics, from day one. These were business trends, not mechani

>HTML/CSS were engineered to be device-independent and to separate styling from the underlying semantics, from day one. These were business trends, not mechanical limitations. >Properly understood, "responsive design" is a triviality; all good design is responsive design. I have no idea what you mean by this. Responsive design means for a page to respond to different viewport constraints by re-arranging elements and making rules for different breakpoints that you choose to support. None of that is trivial unless this is another "it's not a hard CS problem so it's trivial" argument.