Can JavaScript Simulate Mouseover to Activate CSS :hover in Chrome?

Simulating Mouseover Event to Activate CSS ":hover" with JavaScript

Question:

Despite triggering the "mouseover" event, the CSS ":hover" declaration remains inactive. Even attempting to manually add the "hover" class to the element using theElement.classList.add("hover") has no effect. Is it possible to simulate mouseover successfully in Chrome, activating the CSS ":hover" property?

Answer:

It is not feasible to simulate mouseover in a way that triggers the CSS ":hover" declaration due to security restrictions. Events triggered by user interaction or DOM changes are considered trusted, while those created by JavaScript are untrusted.

According to the W3C specification, untrusted events should not trigger browser actions by default, including the activation of CSS ":hover" effects. To simulate mouseover behavior effectively, you must manually add and remove a custom class from the element on the "mouseover" and "mouseout" events, respectively. This custom class can then be used to apply the desired styles through CSS, mimicking the effect of the ":hover" declaration.

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