Animate img

<!DOCTYPE html>
<html>
<head>
<style>
img{
-webkit-animation-name: test;
-webkit-animation-duration: 4s;
-webkit-animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
-webkit-animation-timing-function: linear; //ease in, ease out
}
@-webkit-keyframes test {
    0%   {height: 220px;
           width: 220px;
           }
    0%   {height: 240px;
           width: 240px;
           }//opacity
}
</style>
</head>
<body>
<a href=""><img src="C:\Users\Akshay\Pictures\00520_HD.jpg" style="width:100px; height: 100px"></a>
</body>