.txt-10 {
	font-size: 10px;
}
.txt-12 {
	font-size: 12px;
}
.txt-14 {
	font-size: 14px;
}
.txt-16 {
	font-size: 16px;
}
.txt-18 {
	font-size: 18px;
}
.txt-20 {
	font-size: 20px;
}
.txt-1216 {
	font-size: 12px;
	line-height: 16px;
}
.txt-1218 {
	font-size: 12px;
	line-height: 18px;
}
.bbs-back01 {
	background-attachment: fixed;
	background-image: url(img/bbs/back01.gif);
	background-repeat: no-repeat;
	background-position: center center;
}