#resImage_257 {
    display:block;
    overflow:hidden;
    background-image:url('https://www.articulategroup.co.uk/assets/images/7/access-sq-598b2d5a.jpg');
    background-repeat:no-repeat;
    background-position:center center;
        width:100%;
    background-size: cover;
        height:420px;
}
@media screen and (min-width:700px){
    #resImage_257 {
        background-image:url('https://www.articulategroup.co.uk/assets/images/0/access-e10b1dfc.jpg');
                height:500px;
    }
}
@media screen and (min-width:1000px){
    #resImage_257 {
        background-image:url('https://www.articulategroup.co.uk/assets/images/1/access-2695982f.jpg');
                height:620px;
    }
}
@media screen and (min-width:1400px){
    #resImage_257 {
        background-image:url('https://www.articulategroup.co.uk/assets/images/a/access-f83c3916.jpg');
                height:620px;
    }
}