This simple prototype demonstrates how have a container expand and collapse while moving adjacent content in sync.

Here's a demo showing a basic color picker using a container with 4 states for both the colored star and the color swatches.

Basic shapes like rectangles, lines, circles, text and more are available and they can be dropped on the canvas to create the very first draft of a mobile app in order to demonstrate the flow and functionality of the app.

Proto.io comes with UI libraries for iOS, Android Material Design, Windows and Apple WatchOS so that people can easily drag and drop those elements to bring their ideas to life. Simple interactions can also be applied, primarily screen-linking and basic navigation.

Designers can use their favorite design tools like Photoshop and Sketch to design the finest details of the user interface for their app. Single or multiple touch interactions can be applied on any UI element (layer) on each screen. Sophisticated animations can be created on-screen as well as screen transitions, using the powerful timeline animation features that Proto.io offers.

Re-creation of the apple.com mobile site flyout menu with subtle animations. See how it was re-created step-by-step: http://docs.proto.io/videos/prototyping-subtle-animation/ Enjoy.

Restaurant app.