What is responsive web design?

Responsive web design is an approach that ensures web pages display optimally across a wide range of devices, including desktops, tablets, and smartphones. This design methodology adapts the layout of a web page according to the screen size and resolution of the device being used. It employs flexible grids, images, and CSS media queries to create a seamless experience for users, no matter what device they are using to access the web.

This adaptability is crucial in today's digital landscape since users access websites from various devices with differing screen sizes and orientations. A website designed responsively provides an improved user experience, making navigation easier and content more accessible, which in turn can lead to increased engagement and retention.

The other options do not capture the essence of responsive web design. Fixed layouts are contrary to the concept of responsive design, which inherently emphasizes fluidity and adaptability. Optimizing images and enhancing website speed are important aspects of web development, but they do not specifically define responsive web design.