the real purpose of this, and blueprint, and 960.gs is to give you a pre-defined set of layout elements to help in rapid prototyping. The idea being that these

the real purpose of this, and blueprint, and 960.gs is to give you a pre-defined set of layout elements to help in rapid prototyping. The idea being that these frameworks ahve been tested across all browsers. so in theory (or practice) you can rapidly whip up multi-column layouts without worrying too much about it. note that these frameworks are often overkill, and come w/a lot of unnecessary weight/code for lots of people.