html,
body {
    margin: 0;
    width: 100%;
    height: 100%;
}

body {
    overflow: hidden;
}

picture {
    display: block;
    width: 100%;
    height: 100dvh;
}

picture img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}