.font_10 {
	font-size: 10px;
}
.font_12 {
	font-size: 12px;
	line-height: 130%;
}
.back_line {
	background-image: url(index/back5.gif);
	background-repeat: repeat-y;
}
.contents_back {
	background-image: url(index/back7.gif);
	background-repeat: repeat-y;
}
.main_back {
	background-image: url(content/main_back.gif);
	background-repeat: repeat-y;
}
.header_back {
	background-image: url(content/header_back.gif);
	background-repeat: repeat-y;
}
.navi_back {
	background-image: url(content/navi_back.gif);
	background-repeat: repeat-y;
}
.zu {
	background-image: url(kinzoku/zu.gif);
	background-repeat: no-repeat;
}