/*	=========================
	=		  Main   		=
	=========================*/
* {
	-webkit-box-sizing: border-box;/* Safari/Chrome, other WebKit */
	-moz-box-sizing: border-box;/* Firefox, other Gecko */
	box-sizing: border-box;/* Opera/IE 8+ */
}
body{
	width: 100%;
	height: 350px;
	margin: 0 auto;
	padding: 0;
}
.wrapper{
    display: flex;
    flex-direction: column;
    height: 100%;
}
.clear {
	clear: both;
}
#id_header {
	width: 100%;
	flex: 0 0 auto;
}
#id_content {
	flex: 1 0 auto;
}
#id_aside {
	width: 30%;
	padding: 0px 40px;
	float: right;
}
#id_aside > ul li {
	list-style: none;		/* 移除項目符號 */
}
#id_aside h1 {
	margin:0px 20px;
}
#id_section {
	width: 70%;
	float: left;
	margin-bottom: 10px;
}
#id_section > div {
	max-width: 800px;
	/*height: 100%;*/
	margin: 0px auto;
}
#content {
	height: 100%;
}
#id_footer {
	background-color: black;
	color: white;
	/*height: 200px;*/
	width: 100%;
	flex: 0 0 auto;
	clear: both;
}
#organizers {
	width: 50%;
	float: left;
}
#co-organizers {
	width: 50%;
	float: right;
}
#copyright {
	font-style: italic;
	text-align: center;
	padding-top: 5px;
	padding-bottom: 5px;
}
/*	=========================
	=	   HeaderTop  		=
	=========================*/
.top_cont {
	width: 100%;
	/*height: 160px;*/
	margin: 0px auto;
	padding: 0px;
}
.float_left {
	float: left;
}
.float_ri {
	float: right;
}
.top_w {
	width: 50%;
	padding-top: 25px;
	padding-right: 30px;
}
.clear {   
	clear: both;
	display: block;
	height: 0;
	overflow: hidden;
	visibility: hidden;
	width: 0;
}
/*	=========================
	=	   Navigation  		=
	=========================*/
#menu {
	background-color: rgb(230, 230, 230);
}
#menu a {
	color: inherit;			/* 移除超連結顏色 */
	display: block; 		/* 讓 <a> 填滿 <li> */
	font-size: 1.2rem;
	font-weight: bold;
	padding: 15px 30px;
	text-decoration: none;	/* 移除超連結底線 */
}
#menu a:hover {
	background-color: rgb(115, 115, 115);
	color: white;
}
.navigation {
	display: block;
	width: 100%;
	/*height: 40px;*/
	margin-bottom: 20px;
}
.navigation a {
	color: inherit;			/* 移除超連結顏色 */
	display: block; 		/* 讓 <a> 填滿 <li> */
	font-size: 1.2rem;
	font-weight: bold;
	padding: 15px 30px;
	text-decoration: none;	/* 移除超連結底線 */
}
.navigation a:hover {
	background-color: rgb(115, 115, 115);
	color: white;
}
.navigation > ul{
	background-color: rgb(230, 230, 230);
	list-style: none;		/* 移除項目符號 */
}
.navigation ul li > ul {
	display: none;
	list-style: none;		/* 移除項目符號 */
	margin: 0px;
	padding: 0px;
}
.navigation ul li:hover ul{
	display: block;
	z-index: 999;			/* 讓選單位於最上層 */
	position: absolute;
	background-color: rgb(230, 230, 230);
	/*設定透明度為85%*/
	/* opacity:0.85;				通用透明度設定方式(FireFox、Safari跟Opera可正常讀取) */
	/* -moz-opacity:0.85;			早期FireFox */
	/* -khtml-opacity:0.85;		早期Safari */
	/* filter:alpha(Opacity=85);	IE */
}
.flex-nav {
	display: flex;
	justify-content: center;
	margin: 0px;
	padding: 0px;
}
#id_nav_top {
	width: 100%;
}

/*media queries
@media (max-width: 800px) {
	.flex-nav {
		display: flex;
		flex-direction: column;
		justify-content: center;
		margin: 0px;
		padding: 0px;
	}
}*/
/*	=========================
	=	   Content  		=
	=========================*/
.content_text_header {
	font-size: 1.4em;
	line-height: 120%;
	padding-left: 20px;
}
.content_text {
	font-size: 1.4em;
	line-height: 120%;
	padding: 0px 20px;
	text-align: justify;
	text-justify: distribute;
}
/*	=========================
	=	   Countdown  		=
	=========================*/
#countdown {
	text-align: center;
	padding: 0px auto;
	padding: 0px 10px;
}
#countdown section {
	width: 30%;
	margin: auto 5px;
	background-color: #3C3C3C;
}
#countdown font {
	font-size: 1.4em;
	line-height: 150%;
	color: white;
	margin: 10px 0px;
}
.countdowntime {
	font-size: 1.8em;
	color: white;
	margin: 10px 0px;
}
.timemark {
	font-size: 1.1em;
	color: white;
	margin: 10px 0px;
}
.cd_left {
	float: left;
}
.cd_center {
	float: left;
}
.cd_right {
	float: left;
}
/*	=========================
	=	   Committee  		=
	=========================*/
#committee_main {
	width: 100%;
	/*font-size: 1.4em;
	line-height: 120%;*/
}
#committee_main p {
	margin: 5px 0px;
}
.committee {
	width: 100%;
	margin-bottom: 10px;
}
.committee::after {
	clear: both;
}
.committee_left {
	float: left;
	width: 30%;
}
.committee_right {
	float: right;
	width: 70%;
	padding-left: 20px;
}
/*	=========================
	=	 Call for Papers 	=
	=========================*/