Would you consider media queries as the best approach to responsive design?

media queries is the most important thing for responsive design approach, in CSS and JS, and the second thing is fluid design approach, but you have to use both of them.

in the design there is four type of approaches:

1. Fixed.

2. Fluid.

3. Responsive.

4. Adaptive.

and there is a fifth approach but not official its mix between2&3, called (hybrid approach).