/* Overlay */
.overlay-image .hover {
 position: absolute;
 top: 0;
 height: 100%;
 width: 100%;
 opacity: 0;
 transition: .5s ease;
}

/* Apparition overlay sur passage souris */
.overlay-image:hover .hover {
 opacity: 1;
}
/* Conteneur principal */
.overlay-image {
 position: relative;
 width: 100%;
}

/* Image originale */
.overlay-image .image {
 display: block;
 width: 100%;
 height: auto;
}

/* Texte original */
.overlay-image .text {
 color: #fff;
 font-size: 30px;
 line-height: 1.5em;
 text-shadow: 2px 2px 2px #000;
 text-align: center;
 position: absolute;
 top: 50%;
 left: 50%;
 transform: translate(-50%, -50%);
 width: 100%;
}