CSS Fly – Real time editing of your website
Another excellent tool for web developers comes from CSS Fly.
Here we are talking about a real-time editor of your online site. You don’t have to proceed to any changes, refresh and check it back to see what it looks like anymore. You just type your website page and simply edit your XHTML and CSS code, on the fly!
Test your website’s pages again and again, until you get it to look like exactly as you want.
Another great time saving application, that makes things a lot easier for us 
February 25th, 2008 at 4:25 pm
Nice little resource, seems pretty nifty. Have you tried just using the web developer toolbar for FF? You can edit the html, and css from there as well.
April 9th, 2008 at 12:40 am
I like using Firebug. I will have to give this a try too.
March 10th, 2009 at 9:51 am
Such a useful blog… wow !!!!
June 13th, 2009 at 10:48 am
Another real time on-the-fly editing tool is http://www.simplifyedit.com
You can synchronize,drag and drop images on your live website.No need to download or install.