.vignette-photo-geolocalisee {
    position: relative;
}
.vignette-photo-geolocalisee .legende {
    font-family: ubuntu, Arial, Helvetica, sans-serif;
    font-size: 14px;
    color: #FFF;
    font-weight: 400;
    text-shadow: 0 0 5px #000;
    line-height: 20px;
    position: absolute;
    bottom:8px ;
    left:18px;
}
.vignette-photo-geolocalisee .credit {
    font-size: 12px;
    display: none;
}

.vignette-photo-geolocalisee .legende:hover .credit {
    display: inline-block;
}