Use 16:9 for landscape viewing
Landscape works for YouTube, presentations, courses, and footage where the environment matters. It provides room for side-by-side layouts, charts, and lower thirds.
Use 9:16 for phone-first distribution
Vertical video fills a phone screen and suits reels, shorts, and stories. Use shorter lines, larger type, and stronger vertical spacing.
Recompose instead of cropping
Move important elements into the new safe area, resize the type, and check the complete animation in every target format. One motion system can remain consistent while the layout changes.