@media only screen and (min-width: 640px) {
#bk_image { float:left; width:107%; height:105%; margin-left:-2%;  }
#floor { width:103%;  margin-left:1.2%; margin-top:-14.2%;transform: perspective(1620px) rotateX(46deg) rotateY(1deg) rotateZ(29deg) skewX(-12deg) skewY(-2deg); }
}
@media only screen and (min-width: 800px) {
#bk_image { float:left; width:103%; height:70%;  margin-left:-2%; }
#floor { width:95%;  margin-left:4.2%; margin-top:-16.2%; transform: perspective(1620px) rotateX(46deg) rotateY(1deg) rotateZ(29deg) skewX(-12deg) skewY(-2deg);}
}
@media only screen and (min-width: 960px) {
#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
#floor { width:95%;  margin-left:4.2%; margin-top:-16.2%;transform: perspective(1620px) rotateX(46deg) rotateY(1deg) rotateZ(29deg) skewX(-12deg) skewY(-2deg); }
}
@media only screen and (min-width: 1024px) {	
#bk_image { float:left; width:103%; height:67%; margin-left:-2%;  }
#floor { width:98%;  margin-left:3.2%; margin-top:-16.2%;transform: perspective(1620px) rotateX(46deg) rotateY(1deg) rotateZ(29deg) skewX(-12deg) skewY(-2deg); }
}
@media only screen and (min-width: 1280px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#floor { width:95%;  margin-left:4.2%; margin-top:-16.2%;transform: perspective(1620px) rotateX(46deg) rotateY(1deg) rotateZ(29deg) skewX(-12deg) skewY(-2deg); }
}

@media only screen and (min-width: 1824px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#floor { width:95%;  margin-left:4.2%; margin-top:-16.2%;transform: perspective(1620px) rotateX(46deg) rotateY(1deg) rotateZ(29deg) skewX(-12deg) skewY(-2deg); }
}
@media only screen and (min-width: 2560px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#floor { width:95%;  margin-left:4.2%; margin-top:-16.2%;transform: perspective(1620px) rotateX(35deg) rotateY(1deg) rotateZ(29deg) skewX(-12deg) skewY(-2deg); }
}