Responsive Web Design (RWD) is a design approach and methodology that focuses on creating websites and web applications that provide an optimal user experience across a wide range of devices and screen sizes. RWD combines fluid layouts, flexible images, and media queries to ensure adaptability and responsiveness.
Responsive web design eliminates the need for separate mobile and desktop versions of a site, as content and layouts automatically adjust to the user's device. RWD enhances usability, reduces maintenance efforts, and ensures consistency in design and branding.
Responsive web design is considered a best practice in modern web development.