Start With a Working Page
Explain how progressive enhancement reduces failure modes in basic web pages.
Progressive enhancement asks what smallest version still completes the job. The concept Progressive enhancement separates the essential task from the enhancements around it. The baseline experience should work with semantic HTML and server-acceptable requests. CSS improves layout and hierarchy. JavaScript adds speed, validation polish, transitions, and richer interactions. Why it works The mechanism is resilience. Networks fail, scripts are blocked, devices are old, and hydration can break. When the core path is HTML-first, a delivery failure becomes a degraded experience instead of a total task failure. The business operation is not hidden inside optional behavior. Common trap Treating JavaScript readiness…
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