Cascading Style Sheets: Designing for the Web

I am now referencing the CSS book as I write

Chapter 1

The Web and HTML

Chapter 2

CSS

as i wrote the section above, i utilized several aspects of this chapter manipulating font, color, etc...

but not yet padding colors!

or hovering color changes (not working in Firefox)

Chapter 3

The amazing em unit and
other best practices

this talks about the "em" unit, which has already been put into place.
The rest of the chapter talks about color and some menus...stuff that's covered in later chapters and is a bit confusing now.

Chapter 4

CSS Selectors

Chapter 5

Fonts

Chapter 6

Webfonts

Chapter 7

The Fundamental Objects

Chapter 8

Space Inside Boxes

Chapter 9

Space Around Boxes

Chapter 10

Relative and Abosolute Positioning

Chapter 11

Colors

Chapter 12

Printing and Other Media

Chapter 13

Aural Style Sheets

Chapter 14

From HTML Extentions to CSS

Chapter 15

Cascading and Inheritance

Chapter 16

External Style Sheets

Chapter 17

Other Approaches

Chapter 18

XML Documents

Chapter 19

Tables

Chapter 20

The CSS Saga