img {
position: absolute;
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
}
<body style="margin: 0px;">
<img src="http://i.imgur.com/I3gA11r.jpg">
</body>
When trying the code on both Firefox and Chrome, you're gonna be able to scroll the whole image with Firefox but not with Chrome.
Is the css correct or is it a chrome/webkit bug ?