Layers
| Token | Value | Use it for |
|---|---|---|
z-raised | 10 | A focused link lifts so its ring is not clipped. |
z-fixed | 40 | Sticky table of contents and the back-to-top button. |
z-header | 50 | Site header, and the language listbox that opens beneath it. |
z-skip-link | 100 | The skip link when focused: above everything. |