@media only screen and (min-width: 640px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%; }
	#wall1 {width:40.3%;margin-top:-4.2%;margin-left:17.85%;transform: perspective(700px) rotateY(10deg)  skewY(-1.5deg);}
	#wall2 {width:52.3%;margin-top:-32.9%;margin-left:51.30%;transform: perspective(600px) rotateY(-19deg)  skewY(4.9deg);}
}
@media only screen and (min-width: 800px) {
	#bk_image { float:left; width:103%; height:70%; margin-left:-2%; }
	#wall1 {width:40.3%;margin-top:-4.2%;margin-left:17.85%;transform: perspective(700px) rotateY(10deg)  skewY(-1.5deg);}
	#wall2 {width:52.3%;margin-top:-32.9%;margin-left:51.30%;transform: perspective(600px) rotateY(-19deg)  skewY(4.9deg);}	
}
@media only screen and (min-width: 960px) {
	#bk_image { float:left; width:116%; height:106%; margin-left:-8%;  }
	#wall1 {width:40.3%;margin-top:-4.2%;margin-left:17.85%;transform: perspective(700px) rotateY(10deg)  skewY(-1.5deg);}
	#wall2 {width:52.3%;margin-top:-32.9%;margin-left:51.30%;transform: perspective(600px) rotateY(-19deg)  skewY(4.9deg);}
}
@media only screen and (min-width: 1024px) {	
	#bk_image { float:left; width:103%; height:67%;  margin-left:-2%;}
	#wall1 {width:40.3%;margin-top:-4.2%;margin-left:17.85%;transform: perspective(700px) rotateY(10deg)  skewY(-1.5deg);}
	#wall2 {width:52.3%;margin-top:-32.5%;margin-left:50.30%;transform: perspective(600px) rotateY(-19deg)  skewY(4.9deg);}
}
@media only screen and (min-width: 1280px) {
	#bk_image { float:left; width:103%; height:103%;  margin-left:-2%;}
	#wall1 {width:40.3%;margin-top:-4.2%;margin-left:17.85%;transform: perspective(700px) rotateY(10deg)  skewY(-1.5deg);}
	#wall2 {width:52.3%;margin-top:-32.5%;margin-left:50.30%;transform: perspective(600px) rotateY(-19deg)  skewY(4.9deg);}
}

@media only screen and (min-width: 1824px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%; }
	#wall1 {width:40.3%;margin-top:-4.2%;margin-left:17.85%;transform: perspective(700px) rotateY(10deg)  skewY(-1.5deg);}
	#wall2 {width:52.3%;margin-top:-32.5%;margin-left:50.30%;transform: perspective(600px) rotateY(-19deg)  skewY(4.9deg);}
}
@media only screen and (min-width: 2560px) {
	#bk_image { float:left; width:103%; height:96%; margin-left:-2%; }
	#wall1 {width:40.3%;margin-top:-3.5%;margin-left:18.15%;transform: perspective(700px) rotateY(4deg)  skewY(-1.5deg);}
	#wall2 {width:53.3%;margin-top:-31.9%;margin-left:51.400%;transform: perspective(600px) rotateY(-10deg)  skewY(4.9deg);}

}