@media only screen and (min-width: 640px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%; }
#wall1 {width:33.5%;margin-top:-2.8%;margin-left:16%;transform: perspective(280px) rotateY(12.2deg) skewY(-6.3deg);}
#wall2 {width:52.5%;margin-top:-57%;margin-left:43.9%;transform: perspective(490px) rotateY(-18deg) rotateX(0deg) skewX(0deg) skewY(4.6deg);}	
}
@media only screen and (min-width: 800px) {
#bk_image { float:left; width:103%; height:70%; margin-left:-2%; }
#wall1 {width:27.5%;margin-top:-2.8%;margin-left:20%;transform: perspective(280px) rotateY(12.2deg) skewY(-1.3deg);}
#wall2 {width:39.5%;margin-top:-42%;margin-left:47.9%;transform: perspective(490px) rotateY(-18deg) rotateX(0deg) skewX(0deg) skewY(-0.6deg);}	
}
@media only screen and (min-width: 960px) {
#bk_image { float:left; width:110%; height:104%; margin-left:-6%; }
#wall1 {width:27.5%;margin-top:-1.8%;margin-left:18%;transform: perspective(280px) rotateY(12.2deg) skewY(-4.3deg);}
#wall2 {width:39.5%;margin-top:-43%;margin-left:46.9%;transform: perspective(490px) rotateY(-18deg) rotateX(0deg) skewX(0deg) skewY(-0.6deg);}	
}
@media only screen and (min-width: 1024px) {	
#bk_image { float:left; width:103%; height:67%; margin-left:-2%; }
#wall1 {width:28.5%;margin-top:-1.8%;margin-left:19%;transform: perspective(280px) rotateY(12.2deg) skewY(-3.3deg);}
#wall2 {width:43.5%;margin-top:-45%;margin-left:47.1%;transform: perspective(490px) rotateY(-18deg) rotateX(0deg) skewX(0deg) skewY(-0.6deg);}	

}
@media only screen and (min-width: 1280px) {
#bk_image { float:left; width:103%; height:103%;margin-left:-2%;  }
#wall1 {width:27.5%;margin-top:-2.8%;margin-left:20%;transform: perspective(280px) rotateY(12.2deg) skewY(-1.3deg);}
#wall2 {width:39.5%;margin-top:-42%;margin-left:47.9%;transform: perspective(490px) rotateY(-18deg) rotateX(0deg) skewX(0deg) skewY(-0.6deg);}	
}
@media only screen and (min-width: 1824px) {
#bk_image { float:left; width:103%; height:103%;margin-left:-2%;  }
#wall1 {width:27.5%;margin-top:-2.8%;margin-left:20%;transform: perspective(280px) rotateY(12.2deg) skewY(-1.3deg);}
#wall2 {width:39.5%;margin-top:-42%;margin-left:47.9%;transform: perspective(490px) rotateY(-18deg) rotateX(0deg) skewX(0deg) skewY(-0.6deg);}
}
@media only screen and (min-width: 2560px) {
#bk_image { float:left; width:110%; height:96%;  margin-left:-2%;}
#wall1 {width:28.5%;margin-top:-2.4%;margin-left:20%;transform: perspective(280px) rotateY(7.2deg) skewY(-1.3deg);}
#wall2 {width:39.5%;margin-top:-41%;margin-left:49.71%;transform: perspective(490px) rotateY(-7deg) rotateX(0deg) skewX(0deg) skewY(2.2deg);}
}