Padding and Margin are entered using comma-delimited syntax and are of type Thickness. They can be entered as:
- Padding="5" (Padding is 5 on all four sides)
- Padding="5,10,15,20" (Padding is Left: 5 Top: 10 Right: 15 Bottom: 20)
- Padding="5,10" (Padding is 5 on the Left/Right and 10 on the Top/Bottom)
