.video_gallery{
    padding:20px;
}

.clip_list{
    padding:0;
    padding-bottom:50px;
}
.clip_thumb {
    cursor: pointer;
}
.clip_thumb img {
    width:100%;
    border-radius: 3px;
}
.meta_header{
    height: 105px;
    background-color: #c8e1de; /*#f7f7f7;*/
    padding: 20px 15px 0;
    display: flex;
    cursor: pointer;
}
.meta_header .cover{
    height: 80px;
    width: 60px;
    margin-right: 12px;
}
.meta_header .cover .author_img{
    border-radius: 5px;
    max-width: 100%;
    height: auto;
    border: 0;
}
.meta_header .course_intro {
    overflow-x: hidden;
}
.meta_header .course_intro h1{
    font-size:18px;
    font-weight:bold;
}
.meta_header .course_intro h2{
    font-size:14px;
    font-weight:normal;
}

.banner {
    margin-bottom: 2rem;
}
.course_info{
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: justify;
    justify-content: space-between;
    height: 40px;
    line-height: 30px;
    padding: 0 15px 10px;
    background-color: #f7f7f7;
}
.clip_menu{
    padding: 10px 15px;
    border-radius: 5px;
    background-color: #f7f7f7;
    overflow-y: scroll;
    height: 600px;
}
.course_info {
    font-size:10px;
    color:#333;
}


.content_view {
    font-size:14px;
    line-height: 180%;
    padding:0 10px;
}
.content_view img {max-width:100%;}
.content_view h1 {
    font-size:22px;
    font-weight:bold;
}
.content_view h2 {
    font-size:20px;
    font-weight:bold;
}
.content_view h3 {
    font-size:18px;
    font-weight:bold;
}
.video_player{
    width:100%;
    padding:0 -15px;
}
.video_player video{
    width:100%;
}

.app_bottom {
    margin-top:1rem;
    border-top:solid 1px #bbb;
    padding:1rem;
    font-size:12px;
    text-align: center;
    color:#999;
}