CSSFly: live HTML/CSS editing in your browser0
CSSFly lets you edit CSS and HTML code live in your browser. It’s client-side, so it only works for browsers you have installed locally, but nonetheless could be handy. They don’t list their official browser support on the site, so I did some testing. It seems to work well across almost all browsers (including Explorer 5.5 and upwards, Opera 7.5+ and Netscape 7.2+), but with the notable exception of Safari.
Try it for yourself now, by editing the SiteVista web site!