html,
body {
	margin: 0;
	padding: 0;
	height:100%; 
	width: 100%;
	scrollbar-width: auto;
	text-rendering: optimizeLegibility;
	scroll-behavior: smooth;
}
body {
	font: 14px 'Helvetica Neue', Helvetica, Arial, sans-serif;
	line-height: 1.4em;
	background: #f5f5f5;
	color: #7c2529;
	min-width: 230px;
	margin: 0 auto;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	overflow-y: auto;
	display: flex;
}
.div, .aside {
	display: block;
}
button {
	margin: 0;
	padding: 0;
	border: 0;
	background: none;
	font-size: 100%;
	vertical-align: baseline;
	font-family: inherit;
	font-family: 'Trebuchet MS', sans-serif;
	font-weight: inherit;
	color: inherit;
	-webkit-appearance: none;
	appearance: none;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}
.dropbtn {
  background-color: f5f5f5;
  color: #7c2529;
  height: 30px;
  font-size: 14px;
  border: none;
  border-bottom: 1px solid #7c2529cc;
  cursor: pointer;
  width: 290px;
  text-align: left;
}
.dropdown {
  display: none;
  position: relative;
}
.dropdown-content {
  display: none;
  position: absolute;
  min-width: 250px;
  z-index: 1;
  background-color: f5f5f5;
  transition-duration: 0.3s;
  transition-timing-function: ease-out;
}
.dropdown-content button {
  color: #7c2529;
  background-color: #f5f5f5;
  border: none;
  border-bottom: 1px solid #f0d1d3;
  padding: 8px 16px;
  text-decoration: none;
  display: block;
  width: 100%;
  cursor: pointer;
  border-bottom-right-radius: 15px;
  border-top-left-radius: 15px;
}
.dropdown-content button:hover {background-color: #dfb2b6}
.btnToTop {
	position: fixed;
	bottom: 0px;
	right: 0px;
	width: 67px;
	height: 64px;
	background: url(../images/BG_rightIcon.png) no-repeat;
	cursor: pointer;
	transform: scale(0.8);
}
.btnToTop:hover {
	animation: bounce 2s infinite linear;
}
@keyframes bounce {
	0% {transform: scale(0.8) translateY(0%)}
	25% {transform: scale(0.8) translateY(-10%)}
	50% {transform: scale(0.8) translateY(-0%)}
	75% {transform: scale(0.8) translateY(-10%)}
	100% {transform: scale(0.8) translateY(0%)}
}
.btnToTop i {
	display: block;
	width: 33px;
	height: 30px;
	border: none;
	background: url(../images/toTop.svg) no-repeat;
	position: absolute;
	left: -2px;
	right: 0;
	top: -7px;
	bottom: 0;
	margin: auto;
}
		
.view-toc {
	position: sticky;
	overflow-y: auto;
	overflow-x: hidden;
	top: 5px;
	left: 0;
	width: 20vw;
	height: 100%;
	padding: 0px 0 0 0;
	min-width: 20vw;
}
.view-toc-container {
	position:fixed;
	scrollbar-width: thin;
	width: 20vw;
	min-width: 20vw;
	height: calc(100vh - 10px);
	padding: 0;
    overflow-x: hidden;
	overflow-y: auto;
	vertical-align: top;
}

.view-toc h1 {
	padding: 50px 0;
	font-weight: 400;
	text-align: center;
  }
  
.view-toc  p {
	margin: 0 0 20px;
	line-height: 1.5;
}
.view-body::-webkit-scrollbar {
	width: 5px;
	height: 8px;
	background-color: rgb(207, 73, 73); 
}

body::-webkit-scrollbar-track, .view-toc-container::-webkit-scrollbar-track {
	background-color: #f0f0f0;
	border-radius: 50px;
}

body::-webkit-scrollbar-thumb, .view-toc-container::-webkit-scrollbar-thumb {
	border-radius: 50px;
	background-color: #ce9494;
	box-shadow: inset 2px 2px 5px 0 rgba(#fff, 0.5);
	min-height: 50px;
}
.view-toc-container::-webkit-scrollbar-thumb {
	background-color: #ce94947a;
}
body::-webkit-scrollbar {
	width: 15px;
}
.view-toc-container::-webkit-scrollbar {
	width: 5px;
}

.tree {

}
.tree ul {
	display: block;
	margin: 0px;
	padding: 0px;
	list-style:none;
	color:#7c2529;
	position:relative;
	font-size: 1rem;
	-webkit-touch-callout: none; /* iOS Safari */
	-webkit-user-select: none;   /* Chrome/Safari/Opera */
	-khtml-user-select: none;    /* Konqueror */
	-moz-user-select: none;      /* Firefox */
	-ms-user-select: none;       /* Internet Explorer/Edge */
	user-select: none;           /* Non-prefixed version, currently not supported by any browser */
}

.tree ul {margin-left: 0.5em} /* (indentation/2) */

.tree ul:before {
	content:"";
	display:block;
	width:0;
	position:absolute;
	top:0;
	bottom:0;
	border-left:none;
}

.tree li {
	display: block;
	margin:0px;
	padding:0 5px; /* indentation + .5em = 1.5em*/
	/*line-height:1.8em;  default list item's `line-height` */
	position:relative;
}

.tree container, .tree folder {
	display: block;
	padding: 3px;
}
.tree folder {
	padding-top: 7px;
	font-weight: bold;
}
.tree container icon {
	background-repeat: no-repeat;
	background-position: center center;
	padding: 32px;
	background-image: url('../icons/book2.png');
	background-size: 16px 16px;
	/* url('data:image/png;base64,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'); */
}

.tree folder icon {
	background-repeat: no-repeat;
	background-position: 0 center;
	padding-left: 0px;

	/* background-image: url('data:image/png;base64,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');
	*/
}

.tree container:hover {
	cursor: pointer;
	background: linear-gradient(to top,  #ebc4c4, #ebc4c405);
	border-radius:5px;
	transform: scale(1.03);
}

.tree button {
	width: 100%;
	font: 0.9em 'Helvetica Neue', Helvetica, Arial, sans-serif;
	text-align: left;
}

.view-body {
	display: flex;
	padding: 45px 0px 0px 0px;
}

.view-doc {
	display: flex;
	width: 100%;
	height: 100%;
	margin: 0px 0px 0px 5px;
	padding: 10px 20px;
	min-width: 500px;
	background: #fff;
	border: 1px solid #e6e6e6;
	border-radius: 8px;
	box-shadow: 0px 2px 4px 0 rgba(0, 0, 0, 0.2),
	            0px 2px 15px 0 rgba(0, 0, 0, 0.1);
	flex-grow: 1;
	overflow-y: visible;
}
.view-obj {
	display: flex;
	height: 100%;
}