diff --git a/examples/assets/nav_bg.png b/examples/assets/nav_bg.png
deleted file mode 100644
index ae546ee3..00000000
Binary files a/examples/assets/nav_bg.png and /dev/null differ
diff --git a/examples/components/headerNav.vue b/examples/components/headerNav.vue
index 1affec37..c291d5de 100644
--- a/examples/components/headerNav.vue
+++ b/examples/components/headerNav.vue
@@ -1,5 +1,5 @@
 <template>
-  <div class="headerNav">
+  <div class="headerNav navBg">
     <div style="position: relative">
       <ai-icon type="logo" :icon="'iconcunwei'"/>
       <ai-icon type="logo" :icon="'iconcunwei'" class="textShadow"/>
@@ -78,7 +78,6 @@ export default {
   display: flex;
   align-items: center;
   width: 100%;
-  background-image: url("../assets/nav_bg.png");
   background-repeat: no-repeat;
   background-size: 100% 48px;
   position: fixed;