What it means in plain language
RWD, i.e. Responsive Web Design, is a way of designing a website that adjusts the layout and interface elements to the screen size and device capabilities.
Where it genuinely helps
Responsive web design adapts one interface to screen and interaction rather than merely shrinking a desktop layout.
What to decide before acting
Design from content priorities on small screens with touch, keyboard, orientation and dynamic text in mind.
How to tell whether it works
Test breakpoints on real devices, horizontal overflow, focus, imagery and complete form journeys.
