update

src/components/menu/menu-group.vue

@@ -5,7 +5,6 @@
     </li>
 </template>
 <script>
-    import { findComponentUpward, findComponentsUpward } from '../../utils/assist';
     import mixin from './mixin';
     const prefixCls = 'ivu-menu';
 

src/components/menu/submenu.vue

@@ -72,7 +72,7 @@
                 return style;
             },
             titleStyle () {
-                return this.hasParentSubmenu ? {
+                return this.hasParentSubmenu && this.mode !== 'horizontal' ? {
                     paddingLeft: 43 + (this.parentSubmenuNum - 1) * 24 + 'px'
                 } : {};
             }