.prism-wrapper {
    position: relative;
    padding-top: 25px;
}

.prism-wrapper:before {
    content: attr(rel);
    text-align: center;
    position: absolute;
    top: -1px;
    background: none repeat scroll 0 0 #333333;
    padding: 5px 10px;
    left: 0;
    right: 0;
    color: #fff;
}