WEIGHTED PANELS AND PANEL GROUP FOR RESPONSIVE DESIGN SYSTEM

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for a responsive user interface. One of the methods includes receiving a page, the page including panels, each panel having an equivalent predetermined size. The method includes receiving a layout for the page, the layout defining a predefined hierarchy of panel groups that defines a visual relationship between the panel groups. The method includes selecting panels to include in a slide based on characteristics of the user device and the panel groups. The method includes determining a scaled size for each panel in the selected panels based on a relative weighting of the panel groups. The method includes resizing a panel in the set of panels based on the scaled size. The method includes generating the slide using the set of panels including the resized panel. The method includes sending the slide to the user device.