@media only screen and (min-width: 640px) {
#bk_image { float:left; width:106%; height:106%; margin-left:-2%;  }
#floor { transform: perspective(1500px) rotateX(44deg) rotateY(0deg) rotateZ(41deg) skewX(-11deg) skewY(0deg);width:94%; margin-top:-10.3%; margin-left:12.7%; }
}
@media only screen and (min-width: 800px) {
#bk_image { float:left; width:103%; height:70%; margin-left:-2%;  }
#floor { transform: perspective(1500px) rotateX(44deg) rotateY(0deg) rotateZ(43deg) skewX(-11deg) skewY(0deg);width:85%; margin-top:-9.3%; margin-left:14.7%; }
}
@media only screen and (min-width: 960px) {
#bk_image { float:left; width:116%; height:106%; margin-left:-7%;  }
#floor { transform: perspective(1500px) rotateX(44deg) rotateY(0deg) rotateZ(43deg) skewX(-11deg) skewY(0deg);width:85%; margin-top:-9.3%; margin-left:14.7%; }
}
@media only screen and (min-width: 1024px) {	
#bk_image { float:left; width:103%; height:67%; margin-left:-2%;  }
#floor { transform: perspective(1500px) rotateX(44deg) rotateY(0deg) rotateZ(45deg) skewX(-11deg) skewY(0deg);width:91%; margin-top:-9.3%; margin-left:14.7%; }
}
@media only screen and (min-width: 1280px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }	
#floor { transform: perspective(1500px) rotateX(38deg) rotateY(0deg) rotateZ(43deg) skewX(-11deg) skewY(6deg);width:93%; margin-top:-14.3%; margin-left:14.7%; }
}
@media only screen and (min-width: 1366px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#floor { transform: perspective(1500px) rotateX(44deg) rotateY(0deg) rotateZ(43deg) skewX(-11deg) skewY(0deg);width:85%; margin-top:-9.3%; margin-left:14.7%; }
}
@media only screen and (min-width: 1824px) {
#bk_image { float:left; width:103%; height:103%; margin-left:-2%;  }
#floor { transform: perspective(1500px) rotateX(44deg) rotateY(0deg) rotateZ(43deg) skewX(-11deg) skewY(0deg);width:85%; margin-top:-9.3%; margin-left:14.7%; }
}
@media only screen and (min-width: 2560px) {
#bk_image { float:left; width:103%; height:96%;margin-left:-2%;   }
#floor { width:85%; margin-top:-9.3%; margin-left:15.7%; transform: perspective(2700px) rotateX(19deg) rotateY(0deg) rotateZ(40deg) skewX(-14deg) skewY(0deg); }
}