.course-wrapper {
	position: relative;
	/*margin: 0 auto;
	width: 1000px;*/
	height: 1450px;
}
.long-vertical-bar {
	position: absolute;
	left: 50%;
	top: 96px;
	margin-left: -23px;
	width: 46px;
	height: 1144px;
	background: url(../img/course-clock-bar.png?v=1) no-repeat center;
}
.icon-year {
	position: absolute;
	z-index: 9;
	left: 50%;
	width: 132px;
	height: 36px;
	font-size: 16px;
	line-height: 36px;
	color: #999999;
}
.icon-year-to-right {
	margin-left: -42px;
	text-indent: 22px;
	background: url(../img/year-default-right-icon.png) no-repeat center;
}
.icon-year-to-right.icon-year-2018 {
	color: #00aaff;
	background: url(../img/year-light-right-icon.png) no-repeat center;
}
.icon-year-to-left {
	margin-left: -90px;
	text-indent: 74px;
	background: url(../img/year-default-left-icon.png) no-repeat center;
}
.icon-year-2016 {
	bottom: 300px;
}
.icon-year-2017 {
	bottom: 480px;
}
.icon-year-2018 {
	bottom: 870px;
}
.icon-year-2019 {
	bottom: 1170px;
}

/*介绍*/
.course-div {
	position: absolute;
	padding: 32px 0 0 40px;
	border: 1px solid #eeeeee;
	width: 43.4%;
	background-color: #fafafa;
}
.course-div.special {
	border-color: #00aaff;
}
.course-title {
	margin-bottom: 16px;
	font-size: 14px;
	color: #666;
}
.course-title:hover,.course-title:hover .course-big {
	color: #00aaff;
}
.course-big {
	font-size: 24px;
	color: #333333;
}
.course-introduce {
	display: inline-block;
	margin-left: 12px;
}
.course-sub-introduce {
	display: block;
	margin-left: 58px;
	line-height: 24px;
}

.course-div-2019 {
	bottom: 850px;
	right: 0;
	height: 400px;
}
/*2018年*/
.course-div-2018 {
	bottom: 550px;
	left: 0;
	height: 400px;
}
/*2017年*/
.course-div-2017 {
	bottom: 390px;
	right: 0;
	height: 160px;
}
/*2017年*/
.course-div-2016 {
	bottom: 170px;
	left: 0;
	height: 210px;
}