@media only screen and (max-device-width : 480px) {
	body {background: url(../photo/haikei-chou_small.png) border-box repeat fixed;}
}

@media only screen and (min-device-width : 481px) {
	body {background: url(../photo/haikei-chou_large.png) border-box repeat scroll, url(../photo/haikei-chou_small.png) border-box repeat fixed;}
}