When the mouse pointer moves out of an element, the onmouseout attribute triggers. You can try the following code to implement onmouseout attribute −
Example
<!DOCTYPE html> <html> <body> <h3 id = "myid" onmouseout = "mouseOut()"> This is demo heading. </h3> <p>Click above and then release.</p> <script> function mouseOut() { document.getElementById("myid").style.color = "red"; } </script> </body> </html>