We would like to know how to gray out images.
<!DOCTYPE html>
<html>
<head>
<style type='text/css'>
img {<!-- w ww .j a v a 2 s . c o m-->
-webkit-filter: grayscale(100%);
}
</style>
</head>
<body>
<img src="http://www.java2s.com/style/download.png">
</body>
</html>
The code above is rendered as follows: