diff --git a/src/views/Editor/Toolbar/common/RichTextBase.vue b/src/views/Editor/Toolbar/common/RichTextBase.vue
index d040d3fe..97231bc2 100644
--- a/src/views/Editor/Toolbar/common/RichTextBase.vue
+++ b/src/views/Editor/Toolbar/common/RichTextBase.vue
@@ -123,6 +123,7 @@
 
     <ButtonGroup class="row" passive>
       <CheckboxButton
+        first
         style="flex: 1;"
         v-tooltip="'清除格式'"
         @click="emitRichTextCommand('clear')"