1. Make sure your JavaScript code is in balance with its environment
Web Standards are a three-legged stool, or without metaphors, a threesome of technologies that should live together in harmony. (X)HTML adds structure and semantics to your content, CSS is responsible for its presentation, and the DOM provides an interface to add behavior. You keep your Web pages flexible (or: easier to understand, maintain, restyle and update behavior) by separating all three layers; structure ……
