*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

html,
body{
    width:100%;
    height:100%;
    overflow:hidden;
    background:#000;
}

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

picture img{
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
    user-select:none;
    -webkit-user-drag:none;
}