#resImage_75 {
    display:block;
    overflow:hidden;
    background-image:url('https://www.snap-frames.uk/assets/images/a/snap-frames-uk-ebebab8f.jpg');
    background-repeat:no-repeat;
    background-position:center center;
        width:100%;
    background-size: cover;
        height:340px;
}
@media screen and (min-width:700px){
    #resImage_75 {
        background-image:url('https://www.snap-frames.uk/assets/images/5/snap-frames-uk-d3a63f64.jpg');
                height:340px;
    }
}
@media screen and (min-width:980px){
    #resImage_75 {
        background-image:url('https://www.snap-frames.uk/assets/images/c/snap-frames-uk-a8fc935c.jpg');
                height:340px;
    }
}
@media screen and (min-width:1400px){
    #resImage_75 {
        background-image:url('https://www.snap-frames.uk/assets/images/e/snap-frames-uk-ad397f6e.jpg');
                height:340px;
    }
}