XML & XML Schema editor and XSLT debugger. EditiX also includes a CSS editor. (Windows, Mac OS X & Linux; free version available for non-commercial use)

an online CSS authoring tool that has many layout templates, background image maker, and other features. Requires Javascript. (Safari, Firefox, Internet Explorer; free; in Japanese)

tingelets are a set of bookmarklets that you can place in your browsers bookmark bar. When clicked, they highlight a certain tag or set of tags in a specific color or background tile. They are very handy for quickly looking at web layouts in different browsers. You can either highlight tags directly or type in a tag, id or class name to highlight the matching element(s).

CSSVista is a free Windows application for web developers which lets you edit your CSS code live in both Internet Explorer and Firefox simultaneously. If you like this, you may be interested in our browser compatibility service, SiteVista. Yes, that's why this software is free! :-)

The maze is rendered at the client using only HTML and CSS.

The idea here is setting up a form with a text field and via CSS making it invisible. Then, if a post is sent to a php script handling the request and that text box has information in it, that means a human didn't fill it out, and the script is simply aborted.

The Color Wizard is a color matching application for anyone who wants to create designs with great looking colors.

This web rendering tool is ideally suited for web designers working on Apple iMac and Linux workstations. It allows to verify web designs natively on all popular Internet Explorer versions, without the need to set aside several physical or virtual Microsoft Windows PCs just for that purpose. 

Amaya is intended to be a comprehensive client environment for testing and evaluating new proposals for Web standards and formats. A large part of the intended features of Amaya are implemented in this release, but some of them are not complete yet.

This is the direct link from http://elliottback.com/wp/archives/2005/04/25/convert-image-to-css/
 Convert Image to CSS
Posted in Code, Plugins, Graphics by Elliott Back on April 25th, 2005. [Del.icio.us]

Ever wanted to take an image and convert it, pixel by pixel, into CSS, HTML, or xHTML? Well, now you can, thanks to my handy conversion tool! Just give it the URL of the image to convert, select a pixel resampling ratio, a mode, and off you go. You can also save the html. Just right click on the permalink and "save target as" to your favorite location.

    * Example: Born into Brothels [via]
    * Example: Cambridge, England [via]
    * Massive deforestation [via]

Note: If you give a very large image, with a very small pixel ratio, the image could take a long time to load, or eventually overload your browser with multiple megabytes of web information. These "images" are very large!

An attempt to standardize forms. Nice highlighting effects.

Plug and play style. Download the uni-form.zip (v1.2) and you're pretty much all set! It is encouraged to edit css properties only in the uni-form.css file, so you can easily upgrade to the newer versions as they come along by copying over the old copy the uni-form-generic.css.

A script (.js + .css files to download) that will generate a gallery to an HTML link as you use the CSS class getflickrphotos.

CSSFly is a web 2.0 tool for easy editing websites direct and in real-time in your browser. Simply edit the (X)HTML-code and the external Style-Sheet files : what you code is what you get! This tool is designed for developers. Use it for developing, testing or checking your web-project or take a look behind the scenerys of your favourite websites.