#resImage_216 {
    display:block;
    overflow:hidden;
    background-image:url('https://www.artificialgrassmaintenance.co.uk/assets/images/7/tennis-header-1663b5a4.jpg');
    background-repeat:no-repeat;
    background-position:center center;
        width:100%;
    background-size: cover;
        height:550px;
}
@media screen and (min-width:700px){
    #resImage_216 {
        background-image:url('https://www.artificialgrassmaintenance.co.uk/assets/images/7/tennis-header-1663b5a4.jpg');
                height:550px;
    }
}
@media screen and (min-width:980px){
    #resImage_216 {
        background-image:url('https://www.artificialgrassmaintenance.co.uk/assets/images/1/tennis-header-183c5c30.jpg');
                height:625px;
    }
}
@media screen and (min-width:1400px){
    #resImage_216 {
        background-image:url('https://www.artificialgrassmaintenance.co.uk/assets/images/6/tennis-header-6c0a71f8.jpg');
                height:625px;
    }
}