2.3.1 Understand resolution as it applies to the Box Model.
2.3.2 Create boxes for layout.
2.3.3 Size and position boxes.
2.3.4 Determine how to control overflow for a box.
2.3.5 Understand padding, margins, and border properties.
2.3.6 Understand resolution as it applies to the Box Model.
2.3.7 Create boxes for layout.