#resImage_559 {
    display:block;
    overflow:hidden;
    background-image:url('https://www.articulategroup.co.uk/assets/images/2/fibre-optic-inset1-8eb8bd10.jpg');
    background-repeat:no-repeat;
    background-position:center center;
        width:100%;
    background-size: cover;
        height:200px;
}
@media screen and (min-width:700px){
    #resImage_559 {
        background-image:url('https://www.articulategroup.co.uk/assets/images/2/fibre-optic-inset1-92d7baa8.jpg');
                height:300px;
    }
}
@media screen and (min-width:1000px){
    #resImage_559 {
        background-image:url('https://www.articulategroup.co.uk/assets/images/1/fibre-optic-inset1-315c3b4e.jpg');
                height:500px;
    }
}
@media screen and (min-width:1400px){
    #resImage_559 {
        background-image:url('https://www.articulategroup.co.uk/assets/images/a/fibre-optic-inset1-bf7fba16.jpg');
                height:500px;
    }
}