PUBLIC MARKS from dzc with tags performance & css

Smashing Magazine : "Coding Q&A With Chris Coyier : (...)"

CSS expressions are a powerful (and dangerous) way to set CSS properties dynamically” … and … “The problem with expressions is that they are evaluated more frequently than most people expect”

ealing with browser caching is a balancing act. On one hand, you aim to minimize load times and bandwidth use by ensuring that images, scripts, and style sheets are cached by your visitors; however, you still want to ensure that they’re accessing the most recent versions of all your files. In this article, I’ll show you a few methods for controlling how your site’s files are cached by browsers so you can achieve the best of both worlds: maintaining optimal performance while ensuring that any updates are seen immediately, without a hitch by all of your users.

css et js : concaténer, minimiser, compresser,