body {
	background-attachment: fixed;
	background-repeat: no-repeat;
	background-position: center top;
	background-image: url(../image/background.png);
}
td {
	font-size: 16px;
	vertical-align: middle;
}
.biaoti {
	font-size: 16px;
	font-weight: bold;
	text-align: center;
	vertical-align: middle;
	color: #3333FF;
	border: medium double #FF0033;
}
.footnote {
	font-family: "Courier New", Courier, mono;
	font-size: 13px;
	color: #FFFFFF;
	text-decoration: underline;
	background-color: #0066CC;
	text-align: center;
}
.main_text {
	font-family: "Times New Roman", Times, serif;
	font-size: 16px;
	font-style: normal;
	line-height: normal;
}
.sep_line {
	color: #0066CC;
}
.count {
	font-family: Arial, Helvetica, sans-serif;
}
.list {
	list-style-position: outside;
	list-style-type: square;
}
.box {
	border: medium outset;
	font-size: 18px;
	color: #0000CC;
	background-color: #FFFFFF;
}
.emphasize {
	display: inline;
	font-size: 18px;
	color: #000033;
	font-family: "Times New Roman", Times, serif;
}
.align_top {
	vertical-align: top;
}
.sub_title {
	font-size: 18px;
	font-style: normal;
	font-weight: bold;
	font-family: "Times New Roman", Times, serif;
}

.sub_menu
{
	display: none;
	list-style-type: none;
    padding: 0;
    margin: 0 0 0 0%;
    position: absolute; /* make sure it is dropdown*/
	background-color: #CEECF5;
	text-align: left;
    /*border: 5px solid #222;
    border-top: 0;
    margin-left: -5px; */
}

.biaoti:hover .sub_menu /* only effect when hover on .biaoti*/
{ 
    display: block; /* make sure it is dropdown*/
}
.sub_menu > li:hover
{
	background-color: #EFFBF5;
}
.sub_menu > li a, visited {
    text-decoration: none;
}

/* settings for image slides */
#slider-area
{
	/*width: 100%; this must be 100%*/
	height:360px;
	width: 360px;
	position: relative;
	margin: 10px auto;
	display: block;
	text-align: center;
}
#slides
{
	position: relative; /* absolute does not work*/
	overflow: hidden;
	width: 100%;
	height: 100%;
}

/* give each slide the same dimensions */
#slides .slide
{ 
  width: 100%;
  height: 100%; 
  position:absolute; /*important for centering*/
}

#slides .slide .img
{
}

#slides .slide img /* make sure each slide image is centered */
{
	background-color: #FFFFFF;
	max-height: 100%;
	max-width: 100%;
	display: block;
	position:absolute; /* relative sould also work*/
	top: 50%;
	left: 50%;
	transform: translate(-50%,-50%);
	-ms-transform: translate(-50%,-50%); /* IE < 9.0 */
	-webkit-transform: translate(-50%,-50%); /* old Chrome, Safari, Opera */	
}

#slides .slide .info
{
	z-index: 99;
	position: absolute;
	bottom: 0%;
	text-align: left;
	background-color: rgba(0,0,190,0.7);
	padding: 0;
	opacity: 0;
}

#slider-area:hover .info
{
	opacity: 1;
	transition: all .5s ease-out;
	-webkit-transition: all .5s ease-out;
}

#slides .slide .info h2
{
	padding: 0 20px;
	margin-top: 0px;
	font-weight: bold;
	color: #FFFF66;
}

#slides .slide .info p
{
	padding: 0 20px;
	margin-top: -15px;
	margin-bottom: 0px;
	font-weight: lighter;
	color: #FFFF66;
}

#next {
	height: 50px;
	width: 5%;
	top: 43%;
	line-height: 50px; /*using percentage can not vertically align*/
	font-size: 40px;
	text-align: center;
	color: #FFFF66;
	background-color: rgba(0,0,190,0.5);
	position: absolute;
	right: 0;
	z-index: 99;
	cursor: pointer;
	opacity: 0;
}
#prev {
	height: 50px;
	width: 5%;
	top: 43%;
	line-height: 50px;
	font-size: 40px;
	text-align: center;
	color: #FFFF66;
	background-color: rgba(0,0,190,0.5);
	position: absolute;
	left: 0;
	z-index: 99;
	cursor: pointer;
	opacity: 0;
}
#slider-area:hover #next, #slider-area:hover #prev
{
	opacity: 1;
	transition: all .5s ease-out;
	-webkit-transition: all .5s ease-out;
}

/* format the table for poster and presentations */
#poster_and_talk
{
	 border-collapse: collapse;
}
#poster_and_talk td
{
	padding: 20px auto;
	vertical-align: top;
	text-align: center;
}
#poster_and_talk tr {
	border-bottom: 1px dashed blue;
}​