responsive-design

Design from small screens and progressively expand. Example : Leverage modern CSS layout systems. Flexbox (1-dimensional layout): CSS Grid (2-dimensional layout): Provide images suited to the device. Using srcset : picture element (Art Direction): CSS background images : Adjust text size based on screen size. clamp() function (fluid sizing): Media query approach : Apply styles based on parent container size. Viewport meta tag : Must be included in HTML Mobile-First : Mobile default, use min-width media queries Relative units : Use rem, em, %, vw/vh instead of px Fixed width prohibited : Avoid width: 1200px Duplicate code : Avoid repeating same styles across all breakpoints #responsive #mobile-first #CSS #Flexbox #Grid #media-query #frontend - New website/app : Layout design for combined mobile-desktop use - Legacy improvement : Converting fixed layouts to responsive - Performance optimization : Image optimization per device - Multiple screens : Tablet, desktop, and large screen support - Viewport meta tag : Must be included in HTML - Mobile-First : Mobile default, use min-width media queries - ✅ @media (min-width: 768px) - ❌ @media (max-width: 767px) (Desktop-first) - Relative units : Use rem, em, %, vw/vh instead of px - font-size: rem - padding/margin: rem or em - width: % or vw - Fixed width prohibited : Avoid width: 1200px - Use max-width: 1200px - Duplicate code : Avoid...