Okay, cool. I was just using code that I think is provided by the w3c, so I figured it was cool. I've used it with 4 sites on 4 different servers and they've all worked fine.

But I have found that Dreamweaver does a pretty poor job of displaying CSS in the preview pane. For example, they provide the CSS tags for hyperlink states, yet the links are still the default blue and decorated the default way in the preview. On many fields they tell you that Dreamweaver doesn't display certain attributes you assign, but it has problems with others it says it does show. odd.