Ability to test responsiveness in the demo

[dlockhart]

Feature request: it'd be super cool to be able to resize the demo panels to test responsiveness. That could be kind of difficult though based on how media queries work, and might require that stuff get iframed, which could be gross. So maybe not feasible, but worth investigating. Maybe we can use seamless iframes?

[apalaniuk]

Using Storybook and its viewport addon makes this easy, and allows for the creation of explicitly-responsive demo pages (stories), which we've found useful.

[dlockhart]

Cool yeah... probably time to have another look at Storybook for demos & visual diff testing purposes.