Before we leap in, let’s take a look at why jQuery has come to be the most widely adopted of JavaScript frameworks. First, it’s extremely designer friendly. You’ll see some standard CSS mark-up – hover conditions, list elements – defining styles is very much a static process, but jQuery allows you to easily and instantly add or remove classes, conditions, functions and more to any element on your page so that it takes CSS to the next level – interactivity. jQuery also has a very short learning curve which as some of us know has meant that creating effects like boxes sliding up or down a page child’s play…
Direct link: Extending CSS with jQuery