With a knowledge of the types of fidelity and when to use each, you can create a wireframe for responsive design and good UX.
Learn the fundamental strategies for optimizing images for mobile browsers, such as lazy loading, compression, resizing, and responsiveness.
Learn how to use microinteractions to improve the user experience of your app, and see examples of situations that call for microinteractions.
Learn how to level up your Lean UX with these principles, such as adopting a skateboard mentality or thinking in terms of affordable loss.