diff --git a/src/components/OnlineFile/index.vue b/src/components/OnlineFile/index.vue
index 1f18213..03c4cb9 100644
--- a/src/components/OnlineFile/index.vue
+++ b/src/components/OnlineFile/index.vue
@@ -11,10 +11,11 @@
       :z-index="zIndex"
       :footer-hide="true"
       title="预览"
+      :padding="false"
     >
       <template>
         <iframe
-          style="width: 100%; height: 100%;"
+          style="display: block;width: 100%;height: 100%;border: 0;"
           :src="codeUri"
           frameborder="0"
         />
@@ -37,6 +38,13 @@ export default {
     }
   },
   computed: {},
+  watch: {
+    showModal(newVal) {
+      if (!newVal) {
+        this.codeUri = ''
+      }
+    }
+  },
   created() {
     this.$bus.$on('online-file', (url) => this.open(url))
   },
diff --git a/src/views/system/DashboardComponents/toDo.vue b/src/views/system/DashboardComponents/toDo.vue
index f98004a..a3d4d37 100644
--- a/src/views/system/DashboardComponents/toDo.vue
+++ b/src/views/system/DashboardComponents/toDo.vue
@@ -71,8 +71,9 @@
       :width="defaultModalSize.width"
       :height="defaultModalSize.height"
       esc-closable
+      :padding="false"
     >
-      <iframe :src="modalUrl" style="width: 100%;height: 100%" frameborder="0" />
+      <iframe :src="modalUrl" style="display: block;width: 100%;height: 100%;border: 0;" frameborder="0" />
     </vxe-modal>
   </el-card>
 </template>