body, html{
	font-size: 16px;
	width: 100%;
	margin: 0;
	padding: 0;
	position: fixed;
	height: 100%;
/*	scroll-behavior: smooth;*/
}
body{
/*	display: flex;*/
/*	flex-direction: row;*/
/*	justify-content: center;*/
/*	background: url("./images/background_tago.jpg") no-repeat;*/
/*	background-size: cover;*/
	background-color: #dddaed;
}
main{
	overflow-y: auto;
	display: grid;
/*	place-items: center;*/
	justify-items: center;
/*	display: flex;*/
/*	flex-direction: column;*/
/*	align-items: center;*/
/*	justify-content: center;*/
	width: 100%;
	min-height: 100%;
	padding-top: 12vh;
	padding-bottom: 12vh;
}
/*main::after{
	content: "";
	width: 100%;
	height: 8vh;
}*/
div#mainmd{
/*	position: relative;*/
	width: 80%;
	display: grid;
	justify-items: center;
/*	place-items: center;*/
	min-height: 92vh;
}
div#container{
	position: relative;
	width: 80%;
	padding-bottom: 56.25%;
}
iframe#video {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}
a{
	text-decoration: none;
	color: black;
	font-weight: bold;
}
p{
	margin: 0;
}
/*a.navigatorLink{
	display: flex;
	width: 100%;
	height: 100%;
	justify-content: center;
	align-content: center;
	align-items: center;
}
a.navigatorLink:hover{
	background: #d7d7d7;
}
span.navigatorName{
	width: 4em;
	display: flex;
	justify-content: center;
	align-items: center;
	align-content: center;
}*/

img#navigator {
/*	position: fixed;*/
	left: 0;
	margin: 0;
	padding: 0;
	height: 70px;
/*	object-fit: cover;*/
}

header#header {
/*	background: url("./images/header.jpeg") no-repeat;*/
	/* background-color: ; */
	position: fixed;
	background-color: #dddaed;
	z-index: 5;
/*	background: white;*/
	min-height: 70px;
	display: flex;
	justify-content: flex-end;
	align-items: center;
	width: 100%;
}

div#document {
	height: 100%;
	width: 100%;
	overflow: auto;
/*	display: flex;*/
/*	position: fixed;*/
/*	flex-direction: column;*/
/*	justify-content: start;*/
}

#document > * {
	width: 100%;
}

/*a.headerLink:first-child {
	width: 25%;
}*/

a.headerLink {
	background: #dddaed00;
	min-height: 100%;
	text-decoration: none;
	display: flex;
	flex-direction: row;
/*	justify-content: ;*/
	align-items: center;
	align-content: center;
	flex-grow: 1;
	overflow: visible;
	position: relative;
} 

a.headerLink:hover{
	background: #ccc9dc;
}

a.headerLink:visited{
	background: #ccc9dc;
}

a.headerLink > div::before {
  content: "";
  border-top: 50px solid transparent;
  border-bottom: 50px solid transparent;
  border-left: 2px solid white;
}

a.headerLink > div::after {
  content: "";
  border-top: 50px solid transparent;
  border-bottom: 50px solid transparent;
  border-right: 2px solid white;
}


a.headerLink > div {
	display: flex;
	justify-content: space-between;
	width: 100%;
	align-items: center;
}

a.headerLink > div > span {
	height: 100%;
}

/** {
	border: 1px black solid;
}*/

p.md{
	width: 100%;
	text-indent: 2em;
/*  font-size: 1rem;         /* 字体大小为12号 */*/
  text-indent: 2em;        /* 段首缩进2个字符宽度 */
  line-height: 1.5;        /* 行间距是字体大小的1.5倍 */
  margin-top: 1em;      /* 段间距为行间距的2倍，由于行间距为1.5，所以这里是3倍的字体大小 */
}
p.md.caption{
	width: auto;
}

/* 默认将所有img元素浮动到inline-start */
/*div#mainmd img {
    float: inline-start;
}*/

/* 将偶数的img元素浮动到inline-end */
/*div#mainmd img:nth-child(2n) {
    float: inline-end;
}*/

div#mainmd img{
	min-width: 50%;
}

span.md.italic{
	font-style: italic;
}
span.md.bold{
	font-weight: bold;
}
span.md.fenced{
/*	height: 0.8em;*/
	margin: 4px;
	border: 2px solid #ccc9dc; /* 2px 宽的深色边框 */
	background-color: #ccc9dc;
/*	padding: 4px; /* 为了美观，添加一些内边距 */*/
	display: inline-block; /* 使边框包围整个内容 */
}
span.md.inlineMath{}
span.md.displayMath{
	float: center;
}
span{
	text-indent: 0;
}

a.sublink {
	display: block;
	width: 100%;
}

div.sublinks {
	overflow: visible;
	width: 100%;
}
div.sublinks > a > div {
	width: 100%;
	background-color: #ccc9dc;
	padding-top: 0.5em;
	padding-bottom: 0.5em;
/*	border: 2px solid #bbb8cb;*/
}

div.sublinks p {
	word-wrap: auto;
/*	padding: 0.5em;*/
	text-align: center;
	width: 100%;
}

img.md {
	width: 60vw;
}

h2.md {
	margin: 1.5em;
}