Progressive enhancement emphasizes creating web content grounded in strong standards to ensure it functions for all users, including those with limited connections, assistive technologies, and older devices. This approach advocates for a baseline experience that remains usable regardless of technological variations, while additional enhancements can elevate the experience for users with modern capabilities. Initial focus on CSS functionality has evolved, highlighting the necessity for features to work seamlessly, even if advanced elements like JavaScript are unavailable. For example, CSS page transitions provide dynamic experiences without compromising basic navigation. The fundamental idea is that if advanced features fail, basic functionality remains intact—akin to escalators being 'temporarily stairs.' This principle supports accessibility and inclusivity, ensuring all users find value in the web experience.