I Use the "Head-Chest-Shoulders" Light Formula in Every Room (the Results Are So Cozy)
...great design is one part intuition, one part formula. While it's awesome to trust your gut...abiding by certain guidelines or formulas...makes it easier to focus all your creativity...
An app designer's guide to responsive mobile UX - LogRocket Blog
When it comes to differences between desktop and mobile, the most noticeable factor is real estate. However, there are more parameters that affect the way people use mobile phones.