Float Label Form Interaction by Matt D Smith (and hey look, a cool gif)
The Future of UI and the Dream of the — UX/UI human interfaces — Medium
UI Animations — Haze’s main view.
Is a library of user interface and interaction design animations to help you communicate your UI ideas with people.
Numeric and visual feedback of incrementation
Contextual help appears on hover of ? mark, takes focus of view
GIF - shopping list animation by Salomon Aurélien