Using :pseudo selector on img tag on hover

Question

I'm trying to get the same pseudo element on a div and an img tag.

While the div works just fine the element doesn't show up on the img tag. I use this CSS (simplified):

div:hover:before, img:hover:before{
    content: 'pseudo';
    position: absolute;
    right: 0;
}

Please check out the jsfiddle for the example