.photo-bar.vision{background:url(../images/background/solar-pannel-1024.jpg) no-repeat center center;}
.photo-bar.progress{background:url(../images/background/summer-meadow-1024.jpg) no-repeat center center;}
.photo-bar.share{background:url(../images/background/share-green-1024.jpg) no-repeat center center;}
#main-container{background:url(../images/background/main-theme-1024.jpg) no-repeat center center;}

@media
only screen and (-webkit-min-device-pixel-ratio: 1.5),
only screen and (-o-min-device-pixel-ratio: 3/2),
only screen and (min--moz-device-pixel-ratio: 1.5),
only screen and (min-device-pixel-ratio: 1.5){

  html,
  body{
    width:100%;
    overflow-x:hidden;
  }

}
Please hip