.vcard.avatar span{
    position: absolute;
    top: 0;
    left: 0;
    z-index: 999;
    background: #000;
    color: #fff;
    font-size: 9px;
    padding: 0 5px;
    opacity: 0;

    -moz-transition: all 0.2s ease-in-out;
    -webkit-transition: all 0.2s ease-in-out;
    -o-transition: all 0.2s ease-in-out;
    -ms-transition: all 0.2s ease-in-out;
    transition: all 0.2s ease-in-out;
}
.vcard.avatar:hover span{
    opacity: 1;
}
.vcard.avatar span a{
    color: #fff!important;
}