设置最大列宽

src/MAR/signManage/modules/preview.vue

@@ -1,7 +1,7 @@
 <template>
   <a-popover>
     <template #content>
-      <div class="file-list">
+      <div class="file-list" style="max-width:70vw;">
         <div
           class="item"
           v-for="(item, index) in utils.fileList(rowData.attinfos)"