.container {

    position: relative;

}



#overlay {

    display: none;

}



.bouton-invisible {

    display: none;

    position: absolute;

}

.bouton-tjvisible {

    display: block;

    position: absolute;

}

.image-redimensionnable {

    width: 100%;

    height: auto;

}

       .legende {

            position: absolute;



            

            display: none;

            color: white;

        }



        .bouton-tjvisible:hover + .legende {

            display: block;

        }