CSS Positioning is a module of CSS that defines how to absolutely and relavitely position elements on the page.
Reference
CSS Properties
Guides
- Understanding CSS z-index
- Presents the notion of stacking context and explain how z-ordering works, with several examples.
Specifications
Specification | Status | Comment |
---|---|---|
CSS Positioned Layout Module Level 3 | Working Draft | |
CSS Level 2 (Revision 1) | Recommendation |