视频下载选择框优化

src/views/videoManage/videoLibraryList/form/videoDL.vue

@@ -92,6 +92,8 @@ video#my-player.video-js {
 
   .video-item {
     margin: 6px;
+    width: 68px;
+    height: 68px;
   }
 
   :deep(.el-checkbox-group .el-checkbox.is-checked) {