How To: Change CSS Styles on the fly in Rails with Ajax, RJS and Prototype

rubynoob.com — Here's what all I learned when I decided to try to change the color and width of a box (a div with a border) on a web page without the page redrawing. Learn how easy it is to do this in Rails by using RJS and the prototype library. I think this tutorial is a great stepping stone on the road to all sorts of groovy dynamic styling opportunities!