| Specification | Status |
|---|---|
| HTML Living Standard | Living Standard |
| Selectors Level 4 | Working Draft |
| HTML5 | Recommendation |
| Fullscreen API | Living Standard |
| CSS Basic User Interface Module Level 3 | Recommendation |
| Selectors Level 3 | Recommendation |
| CSS Level 2 (Revision 1) | Recommendation |
| CSS Level 1 | Recommendation |