Layered Presentation

Robert O'Callahan pointed out to me some mistakes in this test that I have not yet had the time to examine or correct.

In each of the following, 1 should be the top layer and 8 the bottom layer:

 8 hide me

7

6

5

4

3

2

1

1

2

3

4

5

6

7

 8 hide me

1

2

3

4

5

6

7

8

1

2

4

3

6

5

7

8

6

5

4

8

7

3

2

1

1

2

3

4

5

6

7

8

4

2

7

3

5

6

1

8

Using assumed default value of z-index (may not pass):

4

2

7

3

5

6

1

8