NOTE: This project has been moved tohttp://smalltalkhub.com/#!/~ToddBlanchard/HTMCSSValidatingParser!!!This is an HTML and CSS parser and DOM that handles rotten HTML and broken CSS quite well. I wrote it to provide validation of web pages and it is the underlying technology behind http://www.badpage.info. The tag nesting and attribute rules are determined by interpreting the DTD's at the W3C. Hopefully this will make it fairly future proof. The CSS parser understands most of CSS 2 and some CSS 3 and the CSS selectors can tell if they match a DOM node. There is no visual rendering and no calculation of layout.I hearby license it free for all uses under the standard MIT license.I also find it quite useful for scraping web pages.