How well do you know XHTML? Why not take the XHTML Challenge? The object of each page is to get to the next page by answering the question posed on the page. I'll start you out with an easy one:
In order to fulfill this challenge you need to change the filename in a URL Take this URL:
And change the file name to "html-challenge".
Once you travel to that page, you'll have passed question 0 and be on your way to solving the XHTML Challenge!
About the XHTML Challenge
The challenge is just for fun. You won't win any prize or get a special mention if you complete it.
The questions will be displayed one per page. Some will be in the form of pictures, and some will have actual questions. Your goal is to figure out what the page is telling you and use that information to go to the next page.
If you have questions or need help post them in the forum. Spoilers and cheats will be removed, but hints such as links to other pages on this site are encouraged!
It is quite possible that some of these questions may have multiple answers, the goal of the challenge is to find the one I meant. I'll try to make the questions as specific as possible (without completely giving the game away), but I am human :-) If you think a question has 2 answers or there is some other problem with the answer, please send me the URL of the question and the two answers you think are correct and I'll take a look.