Write CSS, document.body's HTML and script, then you can see the result by one click, it's faster and easier to get answer then using Visual Studio 2008 or other powerful but compicated IDE.
This test page is originally a demonstration tool in my jQuery tutorials on MSDN Taiwan. After posting the introduce of Mini jQuery Lab, I was surprised that serveral friends inquired about its download and license issue, as well as I had plan to enhance the features for the future tutorials, so I decide to turn it to be an online service to provide the latest version of Mini jQuery Lab to Internet, you can find it on http://www.darkthread.net/MiniJQueryLab.
The "View HTML Source" button on the top will the show the final full-page HTML source, you can use SyntaxHighlighter's powerful clipboard feature to save it as a standalone web page for latter test.
If you find any bug, have any suggestion or idea, please leave your comment here.
Ver 1.2 on 2009-2-14
** Make view HTML source function workable on Firefox
** Add "About" link with ThickBox plugin for online version