If there are any tags or attributes you don't understand, Webmonkey is a good place to clear up the confusion, especially the quick list of tags . You should copy and paste the confusing parts into the scrolling text box below. Speculate about what they may be. I don't want to call them errors. Let's just say they're things that the designer could not have intended and that don't look right or work right.
Re-size the browser window from widest to very narrow.
Stress it a little. Describe the goofiness in the text box below. If you can, copy and paste the relevant code. Speculate about what may be going on.