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What Is Responsive Web Design and Why It Matters for Developers

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Responsive web design is a development approach that allows a single website to automatically adapt its layout and content across desktops, tablets, and smartphones. Instead of maintaining separate desktop and mobile sites, developers use one unified codebase that scales fluidly to any screen size. The technique relies on three core pillars: fluid grids using relative units like percentages, flexible images capped by CSS rules, and media queries that apply styles based on screen width breakpoints. This approach improves user experience by eliminating the need to pinch or zoom, and reduces costs by removing the overhead of managing multiple codebases.

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