#resImage_609 {
    display:block;
    overflow:hidden;
    background-image:url('https://www.cntech.co.uk/assets/images/t/lab-supplies-mhbg6jh9rc7pf85.jpg');
    background-repeat:no-repeat;
    background-position:center center;
    width:100%;
    background-size: cover;
    height:580px;
}
@media screen and (min-width:700px){
    #resImage_609 {
        background-image:url('https://www.cntech.co.uk/assets/images/6/lab-supplies-qvkhy1x00fyfn0h.jpg');
        height:465px;
    }
}
@media screen and (min-width:980px){
    #resImage_609 {
        background-image:url('https://www.cntech.co.uk/assets/images/9/lab-supplies-fv5rjg9j1rc5qt7.jpg');
        height:465px;
    }
}
@media screen and (min-width:1400px){
    #resImage_609 {
        background-image:url('https://www.cntech.co.uk/assets/images/9/lab-supplies-fv5rjg9j1rc5qt7.jpg');
        height:465px;
    }
}