.PreviewResourcces{position:fixed;top:0;left:0;z-index:2000;background-color:#000;width:100%;height:100%;overflow:auto;padding:0 5%}.PreviewResourcces .icon-closeimg{size:26px;position:fixed;top:20px;right:20px;font-size:35px;cursor:pointer;font-weight:bolder}.fh-course-introduction{padding:20px;background:#fff;z-index:1000}.fh-course-introduction .fh-course-info .course-cover-img{float:left;width:422px;height:220px;vertical-align:bottom;margin-right:30px}.fh-course-introduction .fh-course-info .course-cover-img video{height:100%}.fh-course-introduction .fh-course-info .course-cover-img img{height:100%;width:100%}.fh-course-introduction .fh-course-info .resource-dropdow-select{margin-top:180px;float:left}.fh-course-introduction .fh-course-info .el-button--danger{margin:0 10px}.fh-course-introduction .fh-course-info .fh-video-upload-on{display:inline-block}.fh-course-introduction .fh-course-info .fh-video-upload-on .el-button{background:#f56c6c;border-color:#f56c6c;color:#fff!important;margin:0 10px}.fh-course-introduction .h3-title-text{font-size:15px;font-weight:700;margin:10px 0;border-bottom:1px dashed #e8e8e8;padding-bottom:10px}.fh-course-introduction .fr-box{width:95%;margin:0 auto}.fh-course-introduction .el-textarea{width:95%;margin:0 auto;display:block}.fh-course-introduction .dialog-con{border-bottom:1px solid #f5f5f5;position:relative}.fh-course-introduction .dialog-con .left-con,.fh-course-introduction .dialog-con .right-con{display:inline-block;width:45%}.fh-course-introduction .dialog-con .left-con{position:absolute}.fh-course-introduction .dialog-con .left-con .fh-video-upload div{width:100px;margin:0 auto}.fh-course-introduction .dialog-con .left-con .el-upload-list{width:400px}.fh-course-introduction .dialog-con .right-con{border:1px solid #f5f5f5;padding:40px 30px 50px 30px}.fh-course-introduction .dialog-con .right-con p{color:#bbb;line-height:25px;margin:10px 0}