In one implementation, a computing device to provide a graphical user interface (GUI) for presenting content includes one or more processors; a network interface to establish a network connection with a remote server system; a display to output a plurality of graphical elements as part of the GUI; one or more input devices to receive user input related to the plurality of graphical elements; and memory storing instructions that, when executed, cause the one or more processors to perform operations including selecting a first content element; selecting second content elements; detecting a third content element comprising a content summary of the second content elements; and outputting, in the GUI on the display, a first graphical element for the first content element and a third graphical element for the third content element, wherein second graphical elements for the second content elements are hidden or collapsed in the GUI.