body {
	margin-left: 0px;
	margin-top: 0px;
	margin-right: 0px;
	margin-bottom: 0px;
}
.mean {
	color: #000066;
	font-size: 14px;
	font-weight: bold;
}
.introduction_word {color: #666666; font-size: 14px; }
.down_word {
	font-size: 14px;
	color: #666666;
}