diff --git a/core/core-frontend/src/components/visualization/component-background/BackgroundOverallCommon.vue b/core/core-frontend/src/components/visualization/component-background/BackgroundOverallCommon.vue
index ba61f9ffdc..38dceb0ce9 100644
--- a/core/core-frontend/src/components/visualization/component-background/BackgroundOverallCommon.vue
+++ b/core/core-frontend/src/components/visualization/component-background/BackgroundOverallCommon.vue
@@ -579,5 +579,9 @@ watch(
   .ed-select-dropdown__item.selected {
     background-color: rgba(0, 0, 0, 0) !important;
   }
+
+  .is-selected::after {
+    display: none;
+  }
 }
 </style>
diff --git a/core/core-frontend/src/views/chart/components/editor/editor-style/components/TitleSelector.vue b/core/core-frontend/src/views/chart/components/editor/editor-style/components/TitleSelector.vue
index 9c158f61b2..418fe32891 100644
--- a/core/core-frontend/src/views/chart/components/editor/editor-style/components/TitleSelector.vue
+++ b/core/core-frontend/src/views/chart/components/editor/editor-style/components/TitleSelector.vue
@@ -203,7 +203,11 @@ watch(
           </el-tooltip>
         </el-form-item>
 
-        <el-form-item class="form-item" :class="'form-item-' + themes" style="padding-left: 4px">
+        <el-form-item
+          class="form-item"
+          :class="'form-item-' + themes"
+          style="width: 106px; padding-left: 4px"
+        >
           <el-select
             :effect="themes"
             v-model="state.titleForm.letterSpace"