<!DOCTYPE html>
<html>
<head>
<style>
#myDIV {
border: 1px solid black;
background-color: lightblue;
width: 270px;
height: 200px;
overflow: auto;
}
#myDIV:hover {
background-color: coral;
width: 570px;
height: 500px;
padding: 100px;
border-radius: 50px;
}
</style>
</head>
<body>
<p>Mouse over the DIV element and it will change, both in color and size!</p>
<p>Click the "Try it" button and mouse over the DIV element again. The change will now happen gradually, like an animation:</p>
<button onclick="myFunction()">Try it</button>
<div id="myDIV">
<h1>myDIV</h1>
</div>
<script>
function myFunction() {
document.getElementById("myDIV").style.WebkitTransition = "all 2s"; // Code for Safari 3.1 to 6.0
document.getElementById("myDIV").style.transition = "all 2s";
}
</script>
<p>The transition property is supported in Internet Explorer 10, Firefox, Opera, and Chrome.</p>
<p>Safari supports an alternative, the WebkitTransition property.</p>
</body>
</html>