.headimg{   
    background-size: cover !important;
    width:100%;
}


.xray{
    background: url(/TMDCWebsite/img/tmdc_radiology.JPG?2180) 100% 50% no-repeat ;
}

.lab{
    background: url(/TMDCWebsite/img/tmdc_laboratory.JPG?2180)  100% 10% no-repeat;
}