I thought this was just a JSFiddle/JSbin type site for CSS but then I clicked on the generated HTML and realized what it lets you do. This looks like a great to

I thought this was just a JSFiddle/JSbin type site for CSS but then I clicked on the generated HTML and realized what it lets you do. This looks like a great tool for learning CSS but I can't imagine myself pasting in some HTML/CSS and tweaking one thing at a time by pointing and clicking. I'd still recommend checking out http://jsfiddle.net http://jsfiddle.net which lets you keep JS, HTML and CSS separate and makes it easy to include specific versions of JS libraries (handy for testing/reporting bugs). There's also a nice embeddable (iframe) version and it lets you test ajax responses. There's also http://jsbin.com http://jsbin.com which has similar features.