Designing User Experience for Mobile Apps and Websites

https://www.youtube.com/watch?v=eN-Tti_iqwM

(Launches video) How To: Responsive Web Design for Mobile and Tablet -

https://www.youtube.com/embed/tgTbjIyKY3k

5 tips for designing mobile-friendly websites Adaptive (with break points) and Responsive Mobile Design

designer planning software with a UML diagram, signin, ask, dashboard, plans, select, learn, plan, grow, live, budget, media, blog, video on a whiteboard

https://youtu.be/NdqTbpyvaIg

(Launches video)
How To Setup a Mobile Usability Test
Summary: There are a lot of elements involved in a mobile usability test.In this video, we'll walk you through an example test setup, including the necessary equipment, and discuss how to prepare for a test.

https://www.youtube.com/watch?v=RgXFzz_lBzk

(Launches video)
Figma Tips - Using Layout Grids for Responsive Design
Figma has a very powerful constraints tool to enable your design to be responsive, but it becomes even more powerful learning how to use constraints with layout grids on your artboard.