diff --git a/src/views/dictionary/attachment/index.vue b/src/views/dictionary/attachment/index.vue
index 3e69e915..08dd427c 100644
--- a/src/views/dictionary/attachment/index.vue
+++ b/src/views/dictionary/attachment/index.vue
@@ -35,7 +35,7 @@
       <vue-office-docx
         v-if="docxTypes.includes(Preview.type)"
         :src="Preview.path"
-        style="height: 80vh"
+        style="height: calc(100vh - 70px)"
         @rendered="renderedHandler"
         @error="errorHandler"
       />
@@ -43,7 +43,7 @@
         v-else-if="excelTypes.includes(Preview.type)"
         :src="Preview.path"
         :options="options"
-        style="height: 80vh"
+        style="height: calc(100vh - 70px)"
         @rendered="renderedHandler"
         @error="errorHandler"
       />