This website looks decent in IE, but not in Firefox. Here are my issues in firefox:

1.Top Heading comes to close to the edge of the red background. Doesn't happen in the Classes page

2. There is a black gap between the body and footer.

3. The Navigation links at the bottom of the page do not line up with the copyright info.

4. I have created columns floated left for the video page, but the red background doesn't extend to fill the page and the Home link is orphaned off to the right.

I've spent hours trying to figure it out. Your help is appreciated.

Thanks in advance.