body{
    margin:0px;
}
.home-landing{
    background-image: url(cmr-landing-page.jpg);
    background-size: cover;
    background-position: center;
    width: 100%;
    height: 100%;
    background-repeat: no-repeat;    

}
@media only screen 
 and (max-device-width: 480px) {
.home-landing{
    background-image: url(cmr-landing-mobile.jpg)!important;
}      
  }
@media only screen 
  and (min-device-width: 768px) 
  and (max-device-width: 1024px) 
  and (orientation: portrait)  {
.home-landing{
    background-image: url(cmr-landing-pad.jpg)!important;
}
}