diff --git a/src/components/ruler.vue b/src/components/ruler.vue
index 13485af..1646eb3 100644
--- a/src/components/ruler.vue
+++ b/src/components/ruler.vue
@@ -29,7 +29,6 @@
       </div>
     </div>
     <div class="content" :style="bgStyle">
-      {{ differenceValue }}
       <div
           v-if="boxPos"
           class="box"