.mosaique {
    position: relative;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
}

.mosaique img{
    aspect-ratio: auto;
}

.mosaique .img-mosaique {
    position: relative;
    overflow: hidden;
}

.mosaique-item img {
    width: 100%;
}

.mosaique .texte-mosaique {
    position: absolute;
    flex-direction: column;
    z-index: 2;
    display: flex;
    width: 100%;
    align-items: center;
    bottom: 0;
    background-color: #f6f6f6;
    opacity: 0.8;
    height: 42px;
    color: #000;
    font-size: 19px;
}

@media (max-width:425px) {

   .mosaique .texte-mosaique {
        flex-direction: inherit;
        /*height: calc(150px - 71%);*/
   }

   .mosaique .texte-mosaique > span:last-child {
        display:none
    }

}

@media (min-width:990px) {
    .mosaique-item:hover .texte-mosaique {
        height: 75px;
        -webkit-transition: height .3s;
        -moz-transition: height .3s;
        -o-transition: height .3s;
        transition: height .3s;
    }
}


.mosaique .texte-mosaique > span:first-child {
    text-align: center;
    width: 100%;
    padding: 13px;
    font-size: 19px;
}

@media (max-width:600px) {
    .mosaique .texte-mosaique > span:first-child {
        font-size: 13px;
    }
}

.mosaique .texte-mosaique > span:last-child {
    text-align: center;
    width: 100%;
    font-size: 14px;
}

.mosaique-item {
    padding: 5px;
}