.bandeau {
    position: relative;
    width: 75%;
    height: 14.5vw;
    overflow: hidden;
}

.bandeau img {
    position: absolute;
    width: 100%;
    height: 14.5vw;
    transform: translateX(100%);
}

@media screen and (min-width: 981px), (orientation: landscape) {
}