@media only screen and (min-width: 640px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#wall1 {width:84.1%;margin-top:-4.9%;margin-left:19%;}
#floor11 {width:107.94%;margin-left:4.3%;margin-top:-11.72%;}	
}
@media only screen and (min-width: 800px) {
#bk_image { float:left; width:103%; height:70%;margin-left:-2%;   }
#wall1 {width:74.1%;margin-top:-4.9%;margin-left:23%;}
#floor11 {width:107.94%;margin-left:4.3%;margin-top:-11.6%;}	
}
@media only screen and (min-width: 960px) {
#bk_image { float:left; width:116%; height:106%; margin-left:-8%;  }
#wall1 {width:74.1%;margin-top:-4.9%;margin-left:23%;}
#floor11 {width:107.94%;margin-left:4.3%;margin-top:-11.68%;}	
}
@media only screen and (min-width: 1024px) {	
#bk_image { float:left; width:103%; height:67%; margin-left:-2%;  }
#wall1 {width:77.1%;margin-top:-4.9%;margin-left:21%;}
#floor11 {width:107.94%;margin-left:4.3%;margin-top:-11.68%;}	
}
@media only screen and (min-width: 1280px) {
#bk_image { float:left; width:103%; height:103%;margin-left:-2%;   }
#wall1 {width:74.1%;margin-top:-4.9%;margin-left:23%;}
#floor11 {width:107.94%;margin-left:4.3%;margin-top:-11.64%;}	
}
@media only screen and (min-width: 1824px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#wall1 {width:74.1%;margin-top:-4.9%;margin-left:23%;}
#floor11 {width:107.94%;margin-left:4.3%;margin-top:-11.6%;}
}
@media only screen and (min-width: 2560px) {
#bk_image { float:left; width:103%; height:96%; margin-left:-2%;  }
#wall1 {width:77.1%;margin-top:-2.9%;margin-left:23%;}
#floor11 {width:107.94%;margin-left:4.3%;margin-top:-12%;}
}