Limited Availability HTML

Interest invokers

Interest invokers, registered by the interestfor HTML attribute, trigger events and actions on a target element when a user shows interest in the element, through behaviors such as hover, focus, or long-press. Pseudo-elements apply styles to sources and targets of interest.

Baseline Status: This feature is currently Limited (not yet Baseline). Latest engine implementation shipped on Oct 31, 2025.

Desktop Browser Engine Support

Google Chrome

142

Supported

Mozilla Firefox

—

Unsupported

Apple Safari

—

Unsupported

Microsoft Edge

142

Supported

Mobile Browser Engine Support

Chrome Android

142

Firefox Android

—

Safari iOS

—

Specifications and References

Specification ↗ Feature XML ↗

MDN Browser Compat Data Keys:

api.HTMLAnchorElement.interestForElement ↗ api.HTMLAreaElement.interestForElement ↗ api.HTMLButtonElement.interestForElement ↗ api.HTMLElement.interest_event ↗ api.HTMLElement.loseinterest_event ↗ api.InterestEvent ↗ api.InterestEvent.InterestEvent ↗ api.InterestEvent.source ↗ api.SVGAElement.interestForElement ↗ css.selectors.interest-source ↗ css.selectors.interest-target ↗ html.elements.a.interestfor ↗ html.elements.area.interestfor ↗ html.elements.button.interestfor ↗ svg.elements.a.interestfor ↗