That site has been watered down too much...
Here is what needs to be seen: http://web.archive.org/web/20120211235808/http://w3fools.com... this later changed to http://web.archive.org/web/20130501070306/http://w3fools.com...
And after May 1, 2013, all details disappeared from the w3fools.com main page, thus reducing its credibility to zero.