Adjusting Menu text and and menu hight?

Hello again, Could I please have some help with some custom css for the menus in the Gridalicious theme. I want to have adjustment control of the primary and secondary menus. I would like code that allows me to adjust things like 'font weight', 'text transform', line height....additionally I would like control of heights and widths of the menu and menu item boxes all in one place so I can customize the look to my liking. Below is a code I had found in these forums for the catch evolution theme I was previously using. That is the sort of thing I'm looking for but in a way that works for Gridalicious. I'm really brand new with css so I would love some help please! Thanks a million! :) example code that I'd like converted and also include widths and heights as specified above:

#nav-secondary ul.menu a { text-transform: none; }

#nav-secondary ul.menu a { font-weight: normal; }

#nav-secondary ul.menu a { line-height: 44px; padding:0px 12px 0px 12px; }

#nav-primary ul li a { text-transform: none; }

#nav-primary ul li a { font-weight: normal; }

#nav-primary ul li a { line-height: 42px; padding:2px 12px 2px 12px; }