@media only screen and (min-width: 640px) {
	#bk_image { float:left; width:103%; height:105%;margin-left:-2%;   }
	#floor { width:99%;transform: perspective(1420px) rotateX(56deg) rotateY(0deg) rotateZ(57deg) skewX(-9deg) skewY(0deg); }
	.floor_img25 {  width:10.4%; } 
}
@media only screen and (min-width: 800px) {
	#bk_image { float:left; width:103%; height:70%; margin-left:-2%;  }
	#floor { width:75%;transform: perspective(1420px) rotateX(56deg) rotateY(0deg) rotateZ(57deg) skewX(-9deg) skewY(0deg); }
	.floor_img25 {  width:11%; } 
}
@media only screen and (min-width: 960px) {
	#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
	#floor { width:83%; transform: perspective(1420px) rotateX(56deg) rotateY(0deg) rotateZ(54deg) skewX(-9deg) skewY(0deg); }
	.floor_img25 {  width:11%; } 
}
@media only screen and (min-width: 1024px) {	
	#bk_image { float:left; width:103%; height:67%; margin-left:-2%;  }
	#floor { width:82%; transform: perspective(1420px) rotateX(56deg) rotateY(0deg) rotateZ(57deg) skewX(-9deg) skewY(0deg); }
	.floor_img25 {  width:10.8%; } 
}
@media only screen and (min-width: 1280px) {
	#bk_image { float:left; width:103%; height:103%;margin-left:-2%;   }
	#floor { width:75%;transform: perspective(1420px) rotateX(56deg) rotateY(0deg) rotateZ(57deg) skewX(-9deg) skewY(-2deg); }
	.floor_img25 {  width:11%; } 
}
@media only screen and (min-width: 1824px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
	#floor { width:75%; transform: perspective(1420px) rotateX(56deg) rotateY(0deg) rotateZ(57deg) skewX(-9deg) skewY(0deg); }
	.floor_img25 {  width:11%; } 
}
@media only screen and (min-width: 2560px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
	#floor { width:75%; transform: perspective(1420px) rotateX(37deg) rotateY(0deg) rotateZ(57deg) skewX(-9deg) skewY(-5deg); }
	.floor_img25 {  width:11%; } 
}