What is Z index in CSS?

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Tags

1. #relative
2. #specifies
3. #works
4. #lower
5. #elements
6. #element
7. #value
8. #greater
9. #order
10. #stack
11. #always
12. #absolute
13. #front
14. #position
15. #sticky
16. #default
17. #fixed
18. #index
19. #positioned
20. #property