@media only screen and (min-width: 640px) {
	#bk_image { float:left; width:105%; height:105%; margin-left:-2%;  }
	#floor { width:72%; margin-left:14%; margin-top:-11%;transform: perspective(1620px) rotateX(42deg) rotateY(-1deg) rotateZ(0deg) skewX(-11deg) skewY(4deg); }
}
@media only screen and (min-width: 800px) {
	#bk_image { float:left; width:103%; height:70%; margin-left:-2%;  }
	#floor { width:66%; margin-left:18%; margin-top:-11%; transform: perspective(1620px) rotateX(42deg) rotateY(-1deg) rotateZ(0deg) skewX(-11deg) skewY(4deg);}
}
@media only screen and (min-width: 960px) {
	#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
	#floor { width:66%; margin-left:18%; margin-top:-11%;transform: perspective(1620px) rotateX(42deg) rotateY(-1deg) rotateZ(0deg) skewX(-11deg) skewY(4deg); }
}
@media only screen and (min-width: 1024px) {	
	#bk_image { float:left; width:103%; height:67%; margin-left:-2%;  }
	#floor { width:66%; margin-left:18%; margin-top:-11%;transform: perspective(1620px) rotateX(42deg) rotateY(-1deg) rotateZ(0deg) skewX(-11deg) skewY(4deg); }
}
@media only screen and (min-width: 1280px) {
	#bk_image { float:left; width:103%; height:103%;margin-left:-2%;   }
	#floor { width:66%; margin-left:18%; margin-top:-11%;transform: perspective(1620px) rotateX(42deg) rotateY(-1deg) rotateZ(0deg) skewX(-11deg) skewY(4deg); }
}
@media only screen and (min-width: 1824px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
	#floor { width:66%; margin-left:18%; margin-top:-11%; transform: perspective(1620px) rotateX(42deg) rotateY(-1deg) rotateZ(0deg) skewX(-11deg) skewY(4deg);}
}
@media only screen and (min-width: 2560px) {
	#bk_image { float:left; width:103%; height:96%;  margin-left:-2%; }
	#floor { width:69%; margin-left:16%; margin-top:-13%; transform: perspective(1620px) rotateX(42deg) rotateY(-1deg) rotateZ(0deg) skewX(-11deg) skewY(4deg);}

}