1. Background and Borders of Stacking Context #1
z-index:2
2. Absolute z-index:-999
3. Static Block
4. Static Float
5. Static Span
6. Relative Span z-index:0
7. Absolute z-index:999
1. Background and Borders of Stacking Context #2
z-index:1
2. Absolute z-index:-999
3. Static Block
4. Static Float
5. Static Span
6. Relative Span z-index:0
7. Absolute z-index:999