@media only screen and (min-width: 640px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#wall1 {width:53.5%;margin-top:-2.6%;margin-left:12.2%;}
#wall2 {width:20.46%;margin-top:-46.04%;margin-left:63.39%;}
#floor11 {width:107.94%;margin-left:-1.3%;margin-top:-16.75%;}
}
@media only screen and (min-width: 800px) {
#bk_image { float:left; width:103%; height:70%;margin-left:-2%;   }
#wall1 {width:47.5%;margin-top:-2.1%;margin-left:19.2%;}
#wall2 {width:19.33%;margin-top:-43.04%;margin-left:65.49%;}
#floor11 {width:107.94%;margin-left:-1.3%;margin-top:-15.75%;}	
}
@media only screen and (min-width: 960px) {
#bk_image { float:left; width:116%; height:106%; margin-left:-8%;  }
#wall1 {width:47.5%;margin-top:-4.1%;margin-left:19.2%;}
#wall2 {width:19.33%;margin-top:-43.34%;margin-left:65.49%;}
#floor11 {width:107.94%;margin-left:-1.3%;margin-top:-15.75%;}	
}
@media only screen and (min-width: 1024px) {	
#bk_image { float:left; width:103%; height:67%;margin-left:-2%;   }
#wall1 {width:47.5%;margin-top:-2.1%;margin-left:19.2%;}
#wall2 {width:19.33%;margin-top:-43.04%;margin-left:65.49%;}
#floor11 {width:107.94%;margin-left:-1.3%;margin-top:-15.75%;}	
}
@media only screen and (min-width: 1280px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#wall1 {width:47.5%;margin-top:-4.1%;margin-left:19.2%;}
#wall2 {width:19.33%;margin-top:-42.98%;margin-left:66.49%;}
#floor11 {width:107.94%;margin-left:-1.3%;margin-top:-15.64%;}	
}
@media only screen and (min-width: 1824px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#wall1 {width:47.5%;margin-top:-4.1%;margin-left:19.2%;}
#wall2 {width:19.33%;margin-top:-42.98%;margin-left:66.49%;}
#floor11 {width:107.94%;margin-left:-1.3%;margin-top:-15.35%;}
}
@media only screen and (min-width: 2560px) {
#bk_image { float:left; width:110%; height:96%; margin-left:-2%;  }
#wall1 {width:51.1%;margin-top:-6.18%;margin-left:19.2%;}
#wall2 {width:19.63%;margin-top:-43.4%;margin-left:67.89%;}
#floor11 {width:107.94%;margin-left:-1.3%;margin-top:-17.35%;}
}