.courseCenter {
	
}
.courseCenter .title{
	border-top: 1px solid #EEEEEE;
	border-left: 1px solid #EEEEEE;
	background-color: white;
	position: relative;
	top: -5px;
	padding: 10px 30px;
	font-size: 18px;
	font-weight: 600;
}
.courseCenter .title::after{
	content: " ";
	width: 30px;
	height: 54px;
	border-right: 1px solid #eee;
	position: absolute;
	right: -17px;
	top: 3px;
	transform: rotate(-37deg);
	background-color: white;
}
.courseCenter .courseNav {
	margin: 0 20px;
	padding: 20px;
	border-bottom: 1px solid #EEEEEE;
	display: flex;
	flex-direction: row;
	align-items: center;
}
.courseCenter .courseNavbox{
	border: 1px solid #EEEEEE;
}
.courseCenter .courseNav li {
	float: left;
	padding: 0 20px;
	cursor: pointer;
}
.courseCenter .courseNav .header{
	padding: 5px 10px;
	background-color: #12368F;
	color: #fff;
	margin-right: 20px;
	width: 90px;
	text-align: center;
}
.courseCenter .courseNav li.active {
	color: #12368F;
}


.courseList {
	overflow: hidden;
}

.courseList .item {
	position: relative;
	float: left;
	width: calc((100% - 60px) / 4);
	height: 292px;
	margin: 0 20px 30px 0;
	background: #fff;
	border: 1px solid #eee;
}

.courseList  #course .item {
       margin: 0 20px 30px 0 !important;
}

.courseList  #course .item:nth-child(4n) {
       margin-right: 0 !important;
}

.courseList .item-lg {
	float: left;
	width: calc(50% - 10px);
	height: 292px;
	margin: 0 20px 30px 0;
}

.courseList .item:nth-child(4n-2) {
	margin-right: 0;
}

.courseList .item img {
	display: block;
	width: 100%;
	height: 150px;
}

.courseList .item-lg img {
	display: block;
	width: 100%;
	height: 100%;
}

.courseList .item .tag {
	position: absolute;
	top: 0px;
	left: 0px;
	background-image: url(../image/xh.png);
	color: #fff;
	padding: 5px;
	width: 92px;
	background-size: 100%;
	text-align: center;
}
.courseList .item .hour {
	position: absolute;
	top: 5px;
	right: 5px;
	padding: 5px 10px;
	font-size: 12px;
	color: #fff;
	background-color: rgba(0,0,0,0.4);
	
}
.courseList .item .btn{
	border:1px solid #12368F;
	color:#12368F;
	padding: 5px 20px;
	float: right;
	margin-right: 20px;
}