调试

src/components/layout/index.vue

 <template>
   <div>
     <notice></notice>
+    <div class="notice-placeholder"></div>
     <div class="hb-layout" v-loading="fullLoading.visible">
       <main-menu ref="mainMenu" :menu-list="menuList" :actived-code="activedMenu.length > 0 ? activedMenu[0].menuCode : ''" @showLoading="onShowLoading"></main-menu>
       <aside-menu v-show="showAside" :menu-list="activedMenu.length > 0 ? activedMenu[0].childList : []" :actived-code="activedMenu.length > 2 ? activedMenu[2].menuCode : ''"></aside-menu>
@@ -20,7 +21,7 @@
 </template>
 
 <script>
-import Notice from '@/components/notice/notice.vue';
+import Notice from '../notice/notice.vue';
 import { getRequest } from '@/api/api.js';
 import errorMsg from '@/common/js/error.js';
 import MainMenu from './main-menu.vue';

src/components/notice/notice.vue

 <template>
-  <div>
+  <div class="notice-box">
     <el-alert v-if="showNotice" class="notice-box" type="warning" show-icon @close="onClose">
       <div class="notice-content" slot="title">
         <div