<!DOCTYPE html>
<html>
<head>
<style>
div {
width: 100px;
height: 100px;
border: 1px solid black;
margin: 10px;
float: left;
padding: 30px;
text-align: center;
background-color: lightgray;
}
p {
background-color: white;
}
</style>
</head>
<body>
<h3>This example demonstrates the difference between onmousemove, onmouseleave and onmouseout.</h3>
<p>The onmousemove event occurs every time the mouse pointer is moved over the div element.</p>
<p>The mouseleave event only occurs when the mouse pointer is moved out of the div element. </p>
<p>The onmouseout event occurs when the mouse pointer is moved out of the div element, and when it
leaves its child elements (p and span).</p>
<div onmousemove="myMoveFunction()">
<p>onmousemove: <br> <span id="demo">Mouse over and leave me!</span></p>
</div>
<div onmouseleave="myLeaveFunction()">
<p>onmouseleave: <br> <span id="demo2">Mouse over and leave me!</span></p>
</div>
<div onmouseout="myOutFunction()">
<p>onmouseout: <br> <span id="demo3">Mouse over and leave me!</span></p>
</div>
<script>
var x = 0;
var y = 0;
var z = 0;
function myMoveFunction() {
document.getElementById("demo").innerHTML = z+=1;
}
function myLeaveFunction() {
document.getElementById("demo2").innerHTML = x+=1;
}
function myOutFunction() {
document.getElementById("demo3").innerHTML = y+=1;
}
</script>
</body>
</html>