It is easy to assume responsive design is a solved problem. Yet browse the web on a mid-range Android device with a spotty connection, and you will quickly find that most sites are still built desktop-first.
The Mobile Reality
Global mobile traffic has crossed sixty percent of total web usage. In emerging markets, that number is even higher.
Practical Checklist
- Test on real devices, not just browser resizing.
- Prioritize touch targets of at least forty-eight pixels.
- Respect system fonts and default zoom behavior.
- Minimize layout shifts that disorient users during load.
Responsive design is not a feature. It is the baseline for building on the web today.