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Progressive enhancement builds a functional core experience first, then adds visual and interactive enhancements for browsers and devices capable of supporting them.
The Opposite Approach: Graceful Degradation
Rather than building the full-featured version first and stripping features down for limited browsers, progressive enhancement starts simple and adds up — generally producing more reliable results.
A Practical Example
A form that submits correctly with plain HTML, then gets enhanced with JavaScript validation for browsers that support it, still works even if that JavaScript fails to load for some reason.
Why It Still Matters
Even with modern browsers being generally capable, network issues, ad blockers, and accessibility tools can all affect how a page actually renders — a solid baseline protects against all of these.
