.page-header{
	border-bottom: none;
}
.nav-list{
	background: white;
	border: 1px solid rgb(229, 229, 229);
	border-radius: 6px;
	box-shadow: 0 1px 4px rgba(0, 0, 0, .065);
	top: 50px;
	width: 200px;
}
.nav-list span{
	display: inline-block;
	font-size: .75em;
	margin: 5px 0;
	overflow: hidden;
	text-overflow: ellipsis;
	white-space: nowrap;
	width: 175px;
}
.nav-header{
	font-size: 1.2em;
	margin-bottom: -3px;
}
.nav-list>.nav-header>a{
	color: black;
}
.nav-list>li:first-of-type>a{
	border-radius: 6px 6px 0 0;
}
.nav-list>li:last-of-type>a{
	border-radius: 0 0 6px 6px;
}
.nav-list>li:not(:last-of-type)>a{
	border-bottom: 1px solid rgb(229, 229, 229);
}
.nav-list i{
	margin-top: 9px;
}
.nav-list .sub-class i{
	margin-top: 8px;
}
.nav-list .sub-class span.chinese+i{
	margin-top: 5px;
}
.nav-list>li:not(.active) i{
	opacity: .5;
}
.nav-list li:not(.active):hover i{
	opacity: .7;
}
.nav-list span.chinese{
	font-size: .9em;
	margin: 0;
}
.nav-list span.chinese+i{
	margin-top: 8px;
}
.parent-class{
	cursor: pointer;
}
.parent-class.expanded:not(.active) a{
	background: #ECF2FF;
}
.parent-class .icon-minus-sign{
	display: none;
}
.nav-list .sub-class{
	display: none;
	font-size: .85em;
}
.nav-list .sub-class a{
	padding-left: 35px;
}
.nav-list .sub-class span{
	width: 140px;
}

section{
	margin-bottom: 3em;
}
section section{
	margin-bottom: 1em;
}