#allCourse>li{
    padding: 0 10px;
}
.course-name{
    position: relative;
}
.backBtn{
    position: absolute;
    right: 0;
    top: 5px;
    z-index: 1;
}
.courseTarget{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    text-align: center;
}
.courseTarget .isWatching{
    color: rgba(22, 155, 213, 1);
}
.courseInfo{
    padding: 10px 0;
}
.relativeCourseTitle{
    padding: 10px 0;
    font-weight: 700px;
    font-size: 18px;
    color: #333;
}
.courseTitle{
    padding: 0;
}
.courseInfoText{
    margin-right: 30px;
}
#getCredit,#nextVideo,.loadFile{
    background: rgba(22, 155, 213, 1);
    border-radius: 3px !important;
    color: #fff;
    outline: none; 
    padding: 5px 10px;
    text-decoration: none;
}
#getCredit:hover,#nextVideo:hover,.loadFile{
    text-decoration: none;
}
.getScores{
    text-align: right;
    padding: 0;
}
.getCreditAfter{
    display: none;
}
#mainContent{
    display: none;
}
#loadMatDiv,#videoTm{
    display: none; 
}
#videoTm>video{
    outline: none;
}