.page-div{
	overflow: auto;
}
.content-div {
	padding: 40px 83px 10px;
}

.content-div .left {
	height: 100%;
}

.content-div .left .nav {
	list-style: none;
	padding: 0;
	margin-top: 60px;
}

.content-div .left .nav li {
	list-style: none;
	text-align: center;
}

.nav li a {
	line-height: 50px;
	height: 50px;
	letter-spacing: 3px;
}

.content-div .left .nav li span.active {
	border-bottom: 2px solid;
	text-align: justify;
}

.content-div .left .nav li a span::after {
	content: '';
	margin-right: -3px;
}

.content-div .context {
	width: 850px;
	padding: 0 40px 0;
}