no message

Former-commit-id: a8eedd7adb445496ea8c379c44d345177e48ba7e
Former-commit-id: ee9798c5c6e9aec53895e9c83f605ce5052321c2
Former-commit-id: 4b13e4bf2f99ca15163fdc85eae32c561d55d3bc

src/pages/demo/plugins/js-cookie/index.vue

@@ -1,12 +1,12 @@
 <template>
   <Container type="ghost">
-    <el-card class="dd-mb">
+    <el-card class="d2-mb">
       <PageHeader
         slot="header"
         title="基本示例"
         url="https://github.com/js-cookie/js-cookie">
       </PageHeader>
-      <p class="dd-mt-0">基本读写删</p>
+      <p class="d2-mt-0">基本读写删</p>
       <el-button type="primary" @click="set('test-user-name', 'test-user')">set('test-user-name', 'normalValue')</el-button>
       <el-button type="info" @click="get('test-user-name')">get('test-user-name')</el-button>
       <el-button type="error" @click="remove('test-user-name')">remove('test-user-name')</el-button>