MouseEvents dispatched when a pointing device is moved onto or off of an Element or one of its descendents. Similar to mouseover and mouseout respectively, but are not cancelable and are not dispatched more than one "round-trip" into an Element's boundary.



Specification link

Specification currently under development in a Working Group

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.


Last updated on 2020-11-09