diff --git a/core/core-frontend/src/components/data-visualization/ComponentToolBar.vue b/core/core-frontend/src/components/data-visualization/ComponentToolBar.vue
index 159b114c96..420dcf1c67 100644
--- a/core/core-frontend/src/components/data-visualization/ComponentToolBar.vue
+++ b/core/core-frontend/src/components/data-visualization/ComponentToolBar.vue
@@ -207,6 +207,8 @@ onUnmounted(() => {
       content: '%';
       right: 35px;
       top: 1px;
+      height: 24px;
+      line-height: 24px;
     }
   }
 }