It is an event that triggers when the mouse pointer moves out of an element.
You can try to run the following code to learn how to work with onmouseout event in JavaScript −
<html> <head> <script> <!-- function sayHello() { alert("Mouse Out") } //--> </script> </head> <body> <p onmouseout = "sayHello()">This is demo text for mouseover event.</p> </body> </html>