#preview_bg { top:0px; }
#preview { height:200px; bottom:0px; }
#lets { top:calc(20px + 0px); }
#kingaku { position:absolute; top:calc(-78px + 83px); z-index:100; font-size:78%; left:108px; }
.naiyo { background:#d6c6af; z-index:2; width:100%; text-align:center; padding:20px 0; }

@media screen and (max-width:480px) {
	body { margin-bottom:200px; }
	#preview { bottom:0px; }
}
@media screen and (min-width:481px) {
	#preview { top:0px; }
}