fixed weird margin

src/App.vue

@@ -1,22 +1,14 @@
 <template>
-  <div id="app">
-   <b-container fluid></b-container>
-    <router-view></router-view>
-
-
-   </div>
-
+   <b-container fluid>
+     <router-view></router-view>
+   </b-container>
 </template>
 
 <script>
-
-
 export default {
   name: 'app',
-
 }
 </script>
 
 <style>
-
 </style>