@media only screen and (min-width: 640px) {
	#bk_image { float:left; width:105%; height:105%; margin-left:-2%; }
	#floor {  width:81%; margin-top:-2%; margin-left:8%; }
	.floor_img25 { width:8.6%;} 
}
@media only screen and (min-width: 800px) {
	#bk_image { float:left; width:103%; height:70%;margin-left:-2%;  }
	#floor {  width:81%; margin-top:-2%; margin-left:8%; }
	.floor_img25 {  width:9%; } 
}
@media only screen and (min-width: 960px) {
	#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
	#floor {   width:86%; margin-top:-2%; margin-left:9%; }
	.floor_img25 { width:9%; } 
}
@media only screen and (min-width: 1024px) {	
	#bk_image { float:left; width:103%; height:67%; margin-left:-2%; }
	#floor {  width:81%; margin-top:-2%; margin-left:15%; }
	.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:-2%; margin-left:8%; }
	.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:-2%; margin-left:8%; }
	.floor_img25 { width:9%; } 
}