What can I do and stuff

I can do:
Some HTML
Basic styling with CSS
Some things on PHP

What would I like to know more:
A very simple database(a site which records some activity or shiznitz) for example, the last few grades for some students on the “random grade generator” page.
More about styling: Menus, dropdown menus, howering stuff(the mouse thingy.
Javascripting, for making pages moar fanceh.
How to create pages, which get their information from another page(like the main page of Tik.edu.ee).