First of all thanks to all of you that try to help me and answer me.
sorry maybe I have not made myself clear.
The horizontal centering is fine, however I do have problem with the vertical centering.
Does any one know a good way to implement vertical centering.
I tried to google it but the answer didn't worked for me.
What should a fix in my code to make the picture centered vertically?
Given the the picture is the only object in this page.