#resImage_288 {
    display:block;
    overflow:hidden;
    background-image:url('https://greatstbarts900.firthdesign.co.uk/assets/images/0/support-us-f7d9ca03.jpg');
    background-repeat:no-repeat;
    background-position:center center;
        width:100%;
    background-size: cover;
        height:300px;
}
@media screen and (min-width:700px){
    #resImage_288 {
        background-image:url('https://greatstbarts900.firthdesign.co.uk/assets/images/1/support-us-50f7e30c.jpg');
                height:400px;
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}
@media screen and (min-width:980px){
    #resImage_288 {
        background-image:url('https://greatstbarts900.firthdesign.co.uk/assets/images/9/support-us-e9774b5c.jpg');
                height:420px;
    }
}
@media screen and (min-width:1400px){
    #resImage_288 {
        background-image:url('https://greatstbarts900.firthdesign.co.uk/assets/images/6/support-us-7351646a.jpg');
                height:420px;
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}