These are examples from:
Web Development and Design Foundations with XHTML 5th ed by Terry Felke-Morris
Ch 06 Page Layout with CSS
6.2 The Box Model - pg 217
pg 219 no CSS
- practice with Normal flow - no CSS
pg 219 linked CSS
- practice with Normal flow - LINKED CSS
pg 220 nested boxes
- practice with Normal flow and NESTED elements
6.3 CSS Positioning Properties - pg 220
6.4 Exploring CSS Page Layout - pg 236