@media only screen and (min-width: 640px) {
	#bk_image { float:left; width:103%; height:110%;margin-left:-2%;   }
	#floor { width:99%; margin-top:-8%; margin-left:14%;  transform: perspective(1750px) rotateX(69deg) rotateZ(38deg) skewX(0deg) skewY(19deg);}
	.floor_img25 { width:8.7%; } 
}
@media only screen and (min-width: 800px) {
	#bk_image { float:left; width:103%; height:70%; margin-left:-2%;  }
	#floor { width:81%; margin-top:-8%; margin-left:22%; transform: perspective(1750px) rotateX(69deg) rotateZ(38deg) skewX(0deg) skewY(19deg); }
	.floor_img25 { width:9%; } 
}
@media only screen and (min-width: 960px) {
	#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
	#floor { width:81%; margin-top:-8%; margin-left:22%;  transform: perspective(1750px) rotateX(69deg) rotateZ(38deg) skewX(0deg) skewY(19deg);}
	.floor_img25 { width:9%; } 
}
@media only screen and (min-width: 1024px) {
	#bk_image { float:left; width:103%; height:67%; margin-left:-2%;  }
	#floor { width:86%; margin-top:-8%; margin-left:16%; transform: perspective(1750px) rotateX(69deg) rotateZ(38deg) skewX(0deg) skewY(19deg); }
	.floor_img25 { width:8.9%; } 
}
@media only screen and (min-width: 1280px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
	#floor { width:81%; margin-top:-8%; margin-left:22%; transform: perspective(1750px) rotateX(69deg) rotateZ(38deg) skewX(0deg) skewY(19deg); }
	.floor_img25 { width:9%; } 
}
@media only screen and (min-width: 1824px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
	#floor { width:81%; margin-top:-8%; margin-left:22%;  transform: perspective(1750px) rotateX(69deg) rotateZ(38deg) skewX(0deg) skewY(19deg);}
	.floor_img25 { width:9%; } 
}
@media only screen and (min-width: 2560px) {
	#bk_image { float:left; width:103%; height:96%; margin-left:-2%;  }
	#floor { width:81%; margin-top:-8%; margin-left:22%; transform: perspective(2950px) rotateX(69deg) rotateZ(45deg) skewX(9deg) skewY(17deg); }
	.floor_img25 { width:9%; }
}