v150 · HTML · Popover API
Menu + Tooltip Coexist
A realistic toolbar with dropdown menus (popover=auto) and icon-button tooltips (popover=hint). In Chrome 150, a tooltip can open above an already-open dropdown without closing the menu — both occupy the top layer together.
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← Open a menu dropdown, then hover the icon buttons to show tooltips.
Chrome 150: with a menu open, hovering an icon shows a tooltip and the dropdown remains open.
Chrome 150 key rule: A
popover=hint tooltip and a popover=auto dropdown menu coexist in the top layer when the tooltip opens while the dropdown is already open. Opening a new unrelated dropdown still hides an already-open tooltip.
// Interact with the toolbar above…
see also
- Top-layer Stacking Demo — raw stacking rules
- Hint vs Auto Reference — side-by-side behavioural diff
- Layer Inspector — open/close combinations, watch stack
- ChromeStatus entry
implementation reference
Need the exact API surface, compatibility boundaries, errors, lifecycle, and source links? Read the matching gendn reference ↗