#lesson[data-v-3b9df9b1]{width:100%;min-height:100%;background-color:#f5f5f5;display:flex;justify-content:center}#lesson .lesson-main .main[data-v-3b9df9b1],#lesson .lesson-main[data-v-3b9df9b1]{flex:1;display:flex;flex-direction:column}#lesson .lesson-main .main .noData[data-v-3b9df9b1]{flex:1;display:flex;flex-direction:column;justify-content:center}#lesson .lesson-main .main .noData[data-v-3b9df9b1] .empty-wrap{margin-top:0}#lesson .lesson-main .main .noData[data-v-3b9df9b1] .empty-wrap .empty-box{padding-top:0;padding-bottom:100px}#lesson .lesson-main[data-v-3b9df9b1] .ps__rail-x{bottom:45px!important}#lesson .name-box[data-v-3b9df9b1]{display:flex;align-items:center;cursor:pointer}#lesson .name-box .name[data-v-3b9df9b1]{flex:1}#lesson .lesson-cover[data-v-3b9df9b1]{width:90px;height:40px;margin-right:6px}#lesson .mask-main .content[data-v-3b9df9b1]{width:100%;background-color:#fff;box-shadow:0 0 8px rgba(0,124,207,.2);border-radius:10px;margin-bottom:0;position:relative}#lesson .mask-main .content .content-nav[data-v-3b9df9b1]{width:100%;height:50px;padding:0 16px;display:flex;justify-content:space-between;align-items:center}#lesson .mask-main .exportSearch[data-v-3b9df9b1]{position:relative}#lesson .mask-main .exportSearch .exportImg[data-v-3b9df9b1]{position:absolute;top:30px;z-index:100}