Element: mouseout event
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The mouseout event is fired at an Element when a pointing device (usually a mouse) is used to move the cursor so that it is no longer contained within the element or one of its children.
mouseout is also delivered to an element if the cursor enters a child element, because the child element obscures the visible area of the element.
If the target element has child elements, mouseout and mouseover events fire as the mouse moves over the boundaries of these elements too, not just the target element itself. Usually, mouseenter and mouseleave events' behavior is more sensible, because they are not affected by moving into child elements.
Syntax
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("mouseout", (event) => { })
onmouseout = (event) => { }
Event type
A MouseEvent. Inherits from UIEvent and Event.
Examples
The following examples show the use of the mouseout event.
mouseout and mouseleave
The following example illustrates the difference between mouseout and mouseleave events. The mouseleave event is added to the <ul> to color the list purple whenever the mouse exits the <ul>. mouseout is added to the list to color the targeted element orange when the mouse exits it.
When you try this out, you'll find that mouseout is delivered to the individual list items, while mouseleave goes to the overall list, courtesy of the hierarchy of the items and the fact that list items obscure the underlying <ul>.
HTML
<ul id="test">
<li>item 1</li>
<li>item 2</li>
<li>item 3</li>
</ul>
JavaScript
const test = document.getElementById("test");
// Briefly make the list purple when the mouse moves off the
// <ul> element
test.addEventListener("mouseleave", (event) => {
// highlight the mouseleave target
event.target.style.color = "purple";
// reset the color after a short delay
setTimeout(() => {
event.target.style.color = "";
}, 1000);
});
// Briefly make an <li> orange when the mouse moves off of it
test.addEventListener("mouseout", (event) => {
// highlight the mouseout target
event.target.style.color = "orange";
// reset the color after a short delay
setTimeout(() => {
event.target.style.color = "";
}, 500);
});
Result
Specifications
| Specification |
|---|
| Pointer Events # mouseout |
| HTML # handler-onmouseout |