Difference Between Device-Based and Content-Based Breakpoints in CSS
Device-based breakpoints are defined using specific device dimensions (like iPhone or iPad screen sizes), while content-based breakpoints are set according to when the layout or content starts to break or look awkward. Modern responsive design favors content-based breakpoints because they adapt naturally to all devices, including new or unknown screen sizes.
Device-based breakpoints rely on fixed screen widths tied to specific devices (e.g., 320px, 768px, 1024px).
Content-based breakpoints depend on the layout itself — they are added when the design no longer fits comfortably.
Device-based methods can become outdated as new devices appear.
Content-based methods are more flexible and future-proof.