body {
	font-family: Tahoma, Arial, Helvetica, sans-serif;
	font-size: 12px;
	color: #000000;
	background-color: #FFFFFF;
	margin: 0px;
	padding: 0px;
}
td {
	font-family: Tahoma, Arail, Helvetica, sans-serif;
	font-size: 12px;
	color: #000000;
	line-height: 15px;
}
.txt_bg {
	background-color: #FFFFFF;
	background-image: url(images/txt_bg.jpg);
	background-repeat: repeat-x;
	background-position: left top;
}
.lab_td_bg {
	background-color: #F1F6F0;
	background-image:   url("laboratories/images/home_right.gif");
	background-repeat: no-repeat;
	background-position: right top;
}
a:link {
	color: #336633;
	text-decoration: underline;
}
a:visited {
	color: #336633;
	text-decoration: underline;
}
a:hover {
	color: #339900;
	text-decoration: underline;
}
a:active {
	color: #339900;
	text-decoration: underline;
}
a.black:link {
	color: #000000;
	text-decoration: none;
}
a.black:visited {
	color: #000000;
	text-decoration: none;
}
a.black:hover {
	color: #336633;
	text-decoration: none;
}
a.black:active {
	color: #336633;
	text-decoration: none;
}
.biaoti {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 14px;
	font-weight: bold;
	color: #336633;
}
li {
	list-style-type: disc;
	list-style-position: outside;
}
.big_txt {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 20px;
	color: #336633;
	font-weight: bold;
	line-height: 26px;
}
.big_txt2 {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 18px;
	color: #999966;
	font-weight: bold;
	line-height: 26px;
}