And here we have a list of references which helped me in the creation of this website:

Basic XHTML\CSS code; Layout, Tables and Lists:

http://csusap.csu.edu.au/~klodge/JAtutorial/authoring-hypermedia-formatting-tools.htm

Centrally alignning divs and tables:

http://www.w3schools.com/css/css_align.asp

http://www.w3.org/Style/Examples/007/center.en.html

Mouseover Buttons:

http://kyleschaeffer.com/best-practices/pure-css-image-hover/

Background Image:

http://www.backgroundsppt.net/antique-scroll-backgrounds.html

XHTML Validator:

http://validator.w3.org/check