Responsive web design ensures websites work well across devices and screen sizes. With mobile traffic exceeding desktop, responsive design is essential for user experience and SEO.
Flexible grids and layouts adapt to different screen sizes. CSS media queries apply different styles based on device characteristics. Mobile-first design starts with mobile layouts and progressively enhances for larger screens.
Touch-friendly interfaces accommodate finger navigation on mobile devices. Buttons should be large enough to tap easily, and interactive elements need adequate spacing to prevent accidental clicks.