From Extreme Web Designs:
Bee CSS is an online CSS generator that generates css based on your markup. This tool can be highly useful to Web Designers and Web Developers and it helps cut down time that required on coding the CSS associated with the template. It automatically generates a CSS file that contains all the HTML elements, IDs and classes as defined in the markup. All you need to do is simply upload your HTML file and the corresponding stylesheet will be generated for you instantly, that you can copy and paste in your own CSS file, thus saving you tons of time in the process.