New media label

[Lindal_Oronar]

As title the option to add a label on new media.
Add the class unviewed.
With the unviewed class this code add the "NEW" label on it.

.unviewed .thumbnailContainer span:after {
    width: auto;
    height: 20px;
    content: "NIEUW";
    position: absolute;
    right: -255px;
    top: -232px;
    background-color: red;
    text-align: center;
    color: #FFF;
    font-weight: bold;
    line-height: 20px;
    padding: 0 10px;
}