@media only screen and (min-width: 640px) {
	#bk_image { float:left; width:105%; height:105%; margin-left:-2%;  }
	#floor {width:105%;transform: perspective(1500px) rotateX(58deg) rotateY(0deg) rotateZ(33deg) skewX(-11deg) skewY(8deg);	 }
}
@media only screen and (min-width: 800px) {
	#bk_image { float:left; width:103%; height:70%; margin-left:-2%;  }
	#floor {width:85%;transform: perspective(1500px) rotateX(58deg) rotateY(0deg) rotateZ(33deg) skewX(-11deg) skewY(8deg);	 }
}
@media only screen and (min-width: 960px) {
	#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
	#floor {width:85%;transform: perspective(1500px) rotateX(58deg) rotateY(0deg) rotateZ(33deg) skewX(-11deg) skewY(8deg);	}
}
@media only screen and (min-width: 1024px) {	
	#bk_image { float:left; width:103%; height:67%; margin-left:-2%;  }
	#floor {width:91%;transform: perspective(1500px) rotateX(58deg) rotateY(0deg) rotateZ(33deg) skewX(-11deg) skewY(8deg);	  }
}
@media only screen and (min-width: 1280px) {
	#bk_image { float:left; width:103%; height:103%;margin-left:-2%;   }
	#floor {width:85%; transform: perspective(1500px) rotateX(58deg) rotateY(0deg) rotateZ(33deg) skewX(-11deg) skewY(8deg);	}
}
@media only screen and (min-width: 1824px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
	#floor {width:85%;transform: perspective(1500px) rotateX(58deg) rotateY(0deg) rotateZ(33deg) skewX(-11deg) skewY(8deg);	 }
}
@media only screen and (min-width: 2560px) {
	#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
	#floor {width:85%;transform: perspective(1500px) rotateX(45deg) rotateY(0deg) rotateZ(33deg) skewX(-11deg) skewY(8deg);	 }
}