The RootVisualTarget is a visual in the hosting app's visual tree. This visual is where the WebView will connect its visual tree. The app uses this visual to position the WebView within the app. The app still needs to use the Bounds property to size the WebView. The RootVisualTarget property can be an IDCompositionVisual or a Windows::UI::Composition::ContainerVisual. WebView will connect its visual tree to the provided visual before returning from the property setter. The app needs to commit on its device setting the RootVisualTarget property. The RootVisualTarget property supports being set to nullptr to disconnect the WebView from the app's visual tree. \snippet ViewComponent.cpp SetRootVisualTarget \snippet ViewComponent.cpp BuildDCompTree