modified welcome
made logo text width with calc
updated coordinates
HTML:
-renamed logoText to c_intro
- renamed content to c_
- renamed nav to n_
- added classes to nag li's
- removed all var declarations
- removed some comments
- add get number i function
- moved about submenu btn code to separate functions
- updated function names n_ for navigation c_ for content

CSS
- removed some comments
- add table style
- add hovered class for submenu's hovered_sub