Abstract: Widgets on a web page may interact with each other in order to provide a rich, responsive content experience. In one example, the widgets that are provided may include a video player, a video gallery, a metadata pane, or any other components. The gallery may allow a user to select a video to be played, and the gallery may communicate the user's choice to the video player. The video player may then play the video that the user has selected. A container may be provided that allows widgets in the container to interoperate with each other. For example, the container may provide an interface that facilitates communication between a widget and the container, and between plural widgets. A tool may be provided that allows a designer to configure the widgets.