@media only screen and (min-width: 640px) {
	#bk_image { float:left; width:106%; height:105%;  }
	#floor { width:99%; }
}
@media only screen and (min-width: 800px) {
	#bk_image { float:left; width:103%; height:70%;  }
	#floor { width:81%;}
}
@media only screen and (min-width: 960px) {
	#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
	#floor { width:87%; }
}
@media only screen and (min-width: 1024px) {	
	#bk_image { float:left; width:103%; height:67%;  }
	#floor { width:85%;  }
}
@media only screen and (min-width: 1280px) {
	#bk_image { float:left; width:103%; height:103%;  }
	#floor { width:89%; }
}
@media only screen and (min-width: 1824px) {
	#bk_image { float:left; width:103%; height:103%;  }
	#floor { width:81%; }
}
@media only screen and (min-width: 2560px) {
	#bk_image { float:left; width:103%; height:103%;  }
	#floor { width:85%;margin-left:-22%;margin-top:-9%;transform: perspective(2320px) rotateX(45deg) rotateY(0deg) rotateZ(-61deg) skewX(3deg) skewY(11deg);}
}