.back_01_h {
	background-image: url(../images/top/line_01_h.png);
}
.back_01_l {
	background-image: url(../images/top/line_01_l.png);
}
.back_02_h {
	background-image: url(../images/top/line_02_h.png);
}
.back_02_u {
	background-image: url(../images/top/line_02_u.png);
}
.back_02_l {
	background-image: url(../images/top/line_02_l.png);
}
.back_02_r {
	background-image: url(../images/top/line_02_r.png);
}
.back_03_c {
	background-image: url(../images/top/line_03_c.png);
}
.back_00_h {
	background-image: url(../images/top/line_00_h.png);
}
.back_00_l {
	background-image: url(../images/top/line_00_l.png);
}
.back_00_r {
	background-image: url(../images/top/line_00_r.png);
}
.back_00_u {
	background-image: url(../images/top/line_00_u.png);
}
.back_whatis {
	background-image: url(../images/what_is/back.png);
}