Plus Virtual Viewports

Virtual Viewports are Theme Studio's device-sized preview frames for FluentCommunity. The documented presets are desktop at 1440 by 900 pixels, tablet at 768 by 1024, and mobile at 390 by 844. The frame scales visually to fit the editor while keeping the selected internal viewport width.

That distinction lets responsive styles respond to a mobile width even when the preview appears inside a larger administrator window. Use the presets to check menu collapse, topic layout, and badge spacing across device sizes. A scaled preview is useful for design checks but does not reproduce every browser or physical-device behavior.