/* CSS Document */
body {
	margin-top: 0px;
	margin-bottom: 0px;
	font-size: small;
	color: #333333;
	font-family: Arial, Helvetica, sans-serif;
	background-image: url(../common_img/bg_img.gif);
}
a {
	text-decoration: none;
}
a:hover{
	color:#FF0000;
	text-decoration: underline;
}
a:active{
	text-decoration: none;
	color: #FFFFFF;
	background-color: #009900;
}

.top_menu_style{
	color: #999999;
	margin-top: 18px;
}
.menu_link{
	border-bottom-color: #CCCCCC;
	border-bottom-style: solid;
	border-bottom-width: 1px;
	padding-top: 5px;
	padding-left: 5px;
	line-height: 20px;
}
.sub_navi_style{
	font-size: x-small;
}
.tree_style{
	padding-left: 10px;
	padding-top: 2px;
	font-size: x-small;
}

/* content */
.sub_title{
	margin-left: 10px;
	margin-top: 20px;
}
.content{
	line-height: 20px;
	margin-right: 20px;
	margin-left: 20px;
	margin-top: 5px;
}

/* explain */
.exp_title{
	font-weight: bold;
	padding-top: 15px;
	border-bottom-color: #CCCCCC;
	border-bottom-style: dashed;
	border-bottom-width: 1px;
}
.exp_content{
	margin-left: 10px;
}