One question that seems to reappear again and again is “How can I center my table or div on my page?” It’s really fairly simple. First remember:
- Use a valid doctype on your page
- The <table> or <div> has to have a width less then 100%
- The left and right margins need to be set at auto
You can read a more detailed tutorial Center Pages in Browser Window
The instructions above do not tell a person how to do the actual steps – just what needs to be done?
If you followed the link to the detailed tutorial, the instructions are there.