When a website is responsive, the layout and/or content responds or adapts based on the size of screen they are presented on. ... Typically there have been four general screen sizes that responsive design has been aimed at: the widescreen desktop monitor, the smaller desktop (or laptop), the tablet and the mobile phone.
This also overlaps with accessibility needs, as zooming content requires responsive design.
Folio currently supports widescreen desktop and smaller desktop. This epic comprises the work remaining to support tablet and mobile phone.