.pagecontent{
	width: 1200px;
	margin:0 auto;
    height: 100%;
}
.lesson{
    margin: 15px 0 0 0;
    border-left: 6px solid #456BDC;
    font-weight: bolder;
}
.lesson_nor{
    margin-bottom: 15px;
    /*height: 610px;*/
    overflow: hidden;
}
.lesson_nor_world{
	width: 80%;
    margin: 0 auto;
    padding: 20px 0 0 0;
    color: #fff;
    cursor: pointer;
}
.main_world{
    font-size: 18px;
    font-weight: bolder;
	margin: 20px 0 8px 0;
	height: 100px;
    overflow: hidden;
}
.more_world{
	padding-bottom: 160px;
}
.bottom_world{
    height: 20px;
    overflow: hidden;	
}
.line img{
	border-radius: 8px;
    width: 436px;
}
.line{
    margin-bottom: 20px;
    height: 122px;	
}
.line_a{
    float: left;
    margin-right: 20px;	
}
.line_b{
	float:left;
}
.lesson_nor_list{
	width: 896px;
	float:left;
}
.lesson_banner_a,.lesson_banner_b,.lesson_banner_c,.lesson_banner_d{
	width: 286px;
	height: 54px;
	border-top-right-radius: 8px;
	border-top-left-radius: 8px;
    padding: 15px 15px;	
}
.lesson_banner_a{
	background: url(../img/line-second.png) center center no-repeat;
}
.lesson_banner_b{
	background: url(../img/line-third.png) center center no-repeat;
}
.lesson_banner_c{
	background: url(../img/line-first.png) center center no-repeat;
}
.lesson_banner_d{
	background: url(../img/line-four.png) center center no-repeat;
}
.lesson_fillist{
    float: left;
    width: 286px;
    height: 275px;
    background: #fff;
    border-radius: 8px;
    margin: 15px 14px 30px 0;	
}
.fillworld{
    padding: 30px 15px 20px 15px;	
}
.fillworld_main{
    padding-bottom: 20px;
    height: 87px;
    overflow: hidden;
    font-weight: bolder;	
}
.fillworld_vip,.fillworld_free{
	float: right;
}
.fillworld_free{
    background: #ebf3ff;
    padding: 3px 10px;
    border-radius: 6px;	
}
.fillworld_hr{
	margin-top: 40px;	
}
.fillworld_study{
	width: 256px;
}
.lesson_fillist:hover{
	box-shadow:0 15px 30px rgba(0,0,0,0.1);
	transform: translate3d(0,-2px,0);
	cursor: pointer;
}
.main_world_line{font-size: 18px;}
.fillworld_statue{float: right;}
.course_ul .course_nav{ list-style: none;} 
.course_nav,.course_nav a{
	display:inline-block;
}
.course_ul{
	margin-top:20px;
}
.course_nav{
	margin:0 5px;
}
.course_nav a {
    line-height: 14px;
    margin-bottom: 10px;
    padding: 10px;
    font-size: 14px;
}
.course_nav a:hover{color: #456BDC;}

/*click_add*/
.course_nav .item{
	background: #456BDC;
	color: #fff !important;
	border-radius: 8px;
}