The following manifesto represents my answer to the question - "As a UX or UI, designer, how do I know when and where to implement motion to support usability?"
Microinteractions
Creating Usability with Motion: The UX in Motion Manifesto
Proof of concept in software development is a controversial topic. The person that came up with a software idea is usually convinced of its relevance. And stakeholders usually don't want to spend time on something that is not even going to be included in the final product.
The animation property in CSS can be used to animate many other CSS properties such as color, background-color, height, or width. Each animation needs to be defined with the @keyframes at-rule which is then called with the animation property.