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
Browser compatibility
| Feature |
Chrome |
Firefox (Gecko) |
Internet Explorer |
Opera |
Safari (WebKit) |
| Basic support |
1.0 |
1.0 (1.7 or earlier) |
5.0 |
6.0 |
1.0 (85) |
| Feature |
Android |
Firefox Mobile (Gecko) |
IE Mobile |
Opera Mobile |
Safari Mobile |
| Basic support |
1.0 |
1.0 (1) |
(Yes) |
(Yes) |
(Yes) |