Car rental created with related drop down menus. Submenu depends on parent menu selection

The recently released Google Inbox app is a re-thinking of the email inbox experience that beautifully demonstrates Google's material design interactive animation language. This prototype focuses on the compose button's animation. Click the + to reveal a new state where a wave of buttons and labels float up, and the + becomes a pencil icon. It uses two states, with staggered animations.

Added a floating label

This is a prototype for a café discovery service that I'm developing and it is purely for idea conceptualization purposes only! Please leave comments and let me know what you think!