Merge branch 'lhd'

src/views/book/courseware/preview/components/table/TablePreview.vue

@@ -1355,6 +1355,11 @@ $border-color: #e6e6e6;
         align-items: center;
         background-color: #fff;
         border-bottom: 1px solid $font-color;
+
+        :deep(.playBack) {
+          width: 20px;
+          height: 20px;
+        }
       }
 
       .write-click {