Progressive Enhancement

This article talks about Progressive Enhancement, which is uses web technologies in a layered fashion that allows everyone to access the basic content and functionality of a web page, using any browser or Internet connection, while also providing an enhanced version of the page to those with more advanced browser software or greater bandwidth. It is a powerful methodology that allows Web developers to concentrate on building the best possible websites while balancing the issues inherent in those websites being accessed by multiple unknown user-agents. It is considered a better methodology than Graceful Degradation (GD) because it tends to cover a greater range of potential issues as a baseline.