CSSVista Tool

A friend at work put me on to this very cool free tool called CSSVista. It allows you to edit css against a live site and see the results in IE and Firefox simultaneously.

http://litmusapp.com/cssvista

It's a pretty basic tool, you make some changes to your css on the left and it displays on the right (no html changes available) however if you're like me, you no doubt have many occasion where you just can't seem to get your css to do what you want and this tool will allow you to play around till you get it right.

You can also disable css & images in one go to see the affect in both browsers, do some resolution resizing and outline elements.